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Latest KMC Delhi Laboratory Attendant Exam Question (Objective Questions), MCQ in English
Subjects : General Science, General Awareness, Reasoning Ability, Mathematical Ability, English Language
Question Bank KMC Delhi Laboratory Attendant (Chemistry) Exam - English
General Science
Q 1 :
The flame test for sodium shows which colour?
A.Green
B.Blue
C.Violet
D.Yellow
Q 2 :
The presence of sulfate ions is confirmed by the formation of?
A.Yellow precipitate
B.White precipitate
C.Brick-red precipitate
D.Black precipitate
Q 3 :
The confirmatory test for ammonia gas is?
A.Turns red litmus blue
B.Turns starch iodide paper blue
C.Turns lime water milky
D.Forms white fumes with HCl
Q 4 :
The brown ring test is used for detecting?
A.Phosphate
B.Nitrite
C.Nitrate
D.Sulfide
Q 5 :
The flame colour of potassium ion is?
A.Violet
B.Brick red
C.Blue
D.Green
Q 6 :
Which indicator is commonly used in acid-base titration?
A.Phenolphthalein
B.Starch
C.Methyl orange
D.Ferric alum
Q 7 :
Methyl orange turns yellow in?
A.Base
B.Acid
C.Neutral medium
D.Salt solution
Q 8 :
Phenolphthalein is colourless in?
A.All
B.Base
C.Neutral
D.Acid
Q 9 :
The volumetric flask is used for?
A.Heating
B.Evaporation
C.Filtering
D.Preparing standard solutions
Q 10 :
EDTA titration is used for estimating?
A.Chloride
B.Nitrate
C.Water hardness
D.Sulphate
Q 11 :
The reagent used to identify phosphorus in qualitative analysis is?
A.Ammonium molybdate
B.AgNO
C.KSCN
D.Nessler reagent
Q 12 :
Nessler reagent detects?
A.Chloride
B.Ammonia
C.Nitrate
D.Carbonate
Q 13 :
Titration of acid with base is called?
A.Acid-base titration
B.Complexometric titration
C.Redox titration
D.Precipitation titration
Q 14 :
Iodine solution in iodometric titration appears?
A.Red
B.Yellow
C.Blue
D.Brown
Q 15 :
Aqua regia dissolves?
A.Silver
B.Copper
C.Gold
D.Iron
Q 16 :
Which reagent is used for detecting carbonates?
A.Ammonium molybdate
B.HCl
C.Nessler reagent
D.BaCl
Q 17 :
The indicator used in Mohr’s titration is?
A.Methyl orange
B.Phenolphthalein
C.Potassium chromate
D.Starch
Q 18 :
A burette is used for?
A.Delivering variable volume accurately
B.Filtration
C.Evaporation
D.Preparing solutions
Q 19 :
The salt that gives effervescence with dilute acid is?
A.Chloride
B.Nitrate
C.Sulfate
D.Carbonate
Q 20 :
Flame test colour for barium is?
A.Brick red
B.Yellow
C.Violet
D.Apple green
Q 21 :
The reagent used for ammonia detection on filter paper is?
A.Starch
B.Blue litmus
C.Red litmus
D.Potassium chromate
Q 22 :
The indicator methyl orange is red in?
A.Neutral
B.Salt
C.Base
D.Acid
Q 23 :
EDTA titration is mostly used for?
A.Hardness
B.Acidity
C.Chloride
D.Phosphate
Q 24 :
Nessler reagent gives brown colour with?
A.Nitrate
B.Nitrite
C.Ammonia
D.Sulfide
Q 25 :
The burette reading is taken at?
A.Top meniscus
B.Either
C.Both
D.Bottom meniscus
Q 26 :
Which glassware is used for precise volume preparation?
A.Flask
B.Test tube
C.Beaker
D.Volumetric flask
Q 27 :
KMnO acts as?
A.Reducing agent
B.Oxidizing agent
C.Neutral reagent
D.Precipitating agent
Q 28 :
Which indicator is used in strong acid–strong base titration?
A.Phenolphthalein
B.Methyl orange
C.Starch
D.Ferric alum
Q 29 :
Test for nitrite using starch–iodide becomes?
A.Yellow
B.Red
C.Blue
D.Brown
Q 30 :
Chloride ion is confirmed by formation of?
A.Brown ring
B.Black ppt
C.White ppt
D.Blue solution
Q 31 :
Starch is added at the end of titration because?
A.None
B.Slow reaction
C.Remove impurities
D.Prevent early complex formation
Q 32 :
HCl is used to acidify solution in?
A.Chloride test
B.Sulfate test
C.Phosphate test
D.Nitrate test
Q 33 :
Brown precipitate with Nessler reagent shows?
A.Nitrate
B.Ammonium
C.Phosphate
D.Sulphate
Q 34 :
The accuracy of titration increases using?
A.Burette
B.Test tube
C.Beaker
D.Watch glass
Q 35 :
What colour appears at endpoint of EDTA titration?
A.Wine-red to blue
B.Pink
C.Blue to colourless
D.Yellow to red
Q 36 :
Copper ion in flame gives?
A.Blue
B.Red
C.Green
D.Orange
Q 37 :
Which ion gives yellow ppt with ammonium molybdate?
A.Nitrate
B.Chloride
C.Phosphate
D.Sulphate
Q 38 :
The purpose of indicator in titration is?
A.Show endpoint
B.Increase speed
C.Change pH
D.Heat reaction
Q 39 :
Sodium thiosulphate is used in?
A.Redox titration
B.Complexometric titration
C.Iodometric titration
D.Precipitation titration
Q 40 :
Acetic acid dissolves?
A.Carbonate
B.Sulfide
C.Oxalate
D.Sulphate
Q 41 :
Silver chloride turns which colour on sunlight?
A.Yellow
B.Green
C.Brown
D.Grey
Q 42 :
Which ion is detected using silver nitrate?
A.Sulphate
B.Chloride
C.Phosphate
D.Carbonate
Q 43 :
Lead chloride is soluble in?
A.Cold water
B.Hot water
C.Alcohol
D.Benzene
Q 44 :
The colour of dichromate solution changes to green due to?
A.Oxidation
B.Hydrolysis
C.Reduction
D.Complex formation
Q 45 :
Yellow colour with ammonium molybdate confirms?
A.Phosphate
B.Bromide
C.Chloride
D.Sulphite
Q 46 :
Silver bromide precipitate is?
A.White
B.Yellow
C.Cream
D.Black
Q 47 :
Ferric ions give blue complex with?
A.Ferricyanide
B.Thiocyanate
C.Ferrocyanide
D.Dichromate
Q 48 :
Pink colour of phenolphthalein disappears on adding?
A.Base
B.Salt
C.Acid
D.Water
Q 49 :
Which indicator is used in Mohr’s method?
A.Starch
B.Potassium chromate
C.Phenolphthalein
D.Methyl red
Q 50 :
Group I cations precipitate as?
A.Sulfides
B.Carbonates
C.Nitrates
D.Chlorides
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KMC Delhi Laboratory Attendant (Chemistry) Exam Question Bank Book - English
The instrument used to deliver accurate variable volumes is?
A.Pipette
B.Flask
C.Beaker
D.Burette
General Awareness
Q 61 :
Yojna a weekly journal
A.Ministry of Finance
B.Ministry of Information and Broadcastin
C.Ministry of Rural Development
D.Planning Commission
Q 62 :
Kurukshetra a journal on rural development is published by
A.Ministry of Finance
B.Ministry of Information and Broadcastin
C.Ministry of Rural Development
D.Planning Commission
Q 63 :
Devaluation of a currency means
A.Fixing the value of the currency in conjuction with the movement in the value of a basket of predetermined currencies
B.Reduction in the value of a currency vis-à-vis major internationally traded currencies
C.Fixing the value of currency in multilateral consultaion with the IMF the World Bank and major trading partners
D.Permitting the currency to seek its worth in the international market
Q 64 :
In India rural incomes are generally lower than the urban incomes, which of the following reasons account for this
1. a large number of farmers are illiterate and know little about scientific agriculture
2. prices of primary products are lower than those of manufactured products
3. Investments in agriculture has been low when compared to investment in industry
A.1 and 3
B.2 and 3
C.1 and 2
D.1,2 and 3
Q 65 :
In ruby laser, the stimulated emission is due to transition from
A.metastable state to any lower state
B.any higher state of lower state
C.metastable state to ground state
D.any higher state to ground state
Q 66 :
10-6 M NaOH is diluted 100 times. The pH of the diluted base is
A.between 7 and 8
B.between 5 and 6
C.between 6 and 7
D.between 10 and 11
Q 67 :
The respiratory quotient during cellular respiration would depend on
A.the nature of enzymes involved
B.the nature of the substrate
C.the amount of carbon dioxide released
D.the amount of oxygen utilised
Q 68 :
Which Delhi Sultan captured Qutub Minar while it was under construction?
A. Iltutmish
B.Alauddin Khalji
C.Qutub-ud-din Aibak
D.Muhammad Tughlaq
Q 69 :
Where did the First Battle of Panipat take place?
A.Panipat
B.Delhi
C.Kurukshetra
D.Agra
Q 70 :
Who built the Jama Masjid of Delhi?
A.Shah Jahan
B.Jahangir
C.Akbar
D.Aurangzeb
Q 71 :
The iconic Humayun's Tomb was built by:
A.Babur
B.Humayun
C.Hamida Banu Begum
D. Akbar
Q 72 :
The Iron Pillar near Qutub Minar was originally from:
A.Kanauj
B. Mathura
C.Ujjain
D.Pataliputra
Q 73 :
"Who said, 'India was a parrot unto itself'?
A.Malik Muhammad Joyce
B.Raskhan
C.Rich Khusrow
D.Rich Hasan
Q 74 :
When was the Constituent Assembly of India formed?
A.1946
B.1947
C.1948
D.1950
Q 75 :
Who is known as the "Missile Man of India"?
A.Dr. Homi J. Bhabha
B.Dr. Vikram Sarabhai
C.Dr. APJ Abdul Kalam
D.Dr. Satish Dhawan
Q 76 :
Who became the longest-serving continuous Finance Minister of India and presented her ninth straight Union Budget on February 1, 2026?
A.Nirmala Sitharaman
B.Arun Jaitley
C.Pranab Mukherjee
D.P. Chidambaram
Q 77 :
How many Ramsar sites does India now have after adding two new ones (in Uttar Pradesh and Gujarat) in early February 2026?
A.98
B.97
C.96
D.100
Q 78 :
In which rank did India stand in the Global Soft Power Index 2026, as reported around February 2026?
A.25th
B.32nd
C.28th
D.35th
Q 79 :
What did the Supreme Court of India declare as a fundamental right in schools around February 2026?
A.Free education up to class 12
B.Sports infrastructure
C.Digital literacy programs
D.Menstrual health facilities
Q 80 :
Which organization plans to launch India's first-ever National Household Income Survey (NHIS) and Annual Survey of Incorporated Service Sector Enterprises (ASISSE) starting April 2026?
A.RBI
B.SEBI
C.NITI Aayog
D.NSO (National Statistical Office)
Reasoning Ability
Q 81 :
Which letter in this alphabet is the eighth letter to the right of the letter and which is tenth letter to the left of the last but one letter of the alphabet ?
A.X
B.W
C.I
D.H
Q 82 :
If the third alphabet of each of the words is changed to the next alphabet in the English alphabetical series, which of the following will form a meaningful English word?
A.SUM
B.BIG
C.Both BIG and THE
D.FOR
E.Both FOR and BIG
Q 83 :
If the given words are arranged in the order as they would appear in a dictionary from left to right, which of the following will be second from the right ?
A.AND
B.FOR
C.THE
D.BIG
E.SUM
Q 84 :
If second alphabet in each of the words is changed to next alphabet in the English alphabetical order, how many words having two vowels (same or different vowels) will be formed ?
A.None
B.One
C.Two
D.Three
E.Four
Q 85 :
How many letters are there in the English alphabetical series between the second letter of the word which is second from the right and the second letter of the word which is second from the left of the given words?
A.Two
B.Five
C.Six
D.Nine
E.Three
Q 86 :
If in each of the given words, each of the consonant is changed to previous letter and each vowel is changed to next letter in the English alphabetical series, in how many words thus formed will no vowels appear?
A.None
B.One
C.Two
D.Three
E.More than three
Q 87 :
If the third alphabet in each of the words is changed to the next alphabet in the English alphabetical order, how many words having two vowels (same or different vowels) will be formed?
A.None
B.One
C.Two
D.Three
E.Four
Q 88 :
If the position of the first and the second alphabets of each of the words are interchanged, which of the following will form a meaningful English word?
A.Both CAT and OWN
B.Both BRU and INK
C.Only CAT
D.Only INK
E.Only LEG
Q 89 :
If the given words are arranged in the order as they would appear in a dictionary from left to right, which of the following will be exactly in the middle of the five words?
A.OWN
B.LEG
C.BRU
D.CAT
E.INK
Q 90 :
If in each of the given words, each of the consonants is changed to previous letter and each vowel is changed to next letter in the English alphabetical series, in how many words thus formed will the same alphabet appear twice?
A.None
B.One
C.Two
D.Three
E.More than three
Q 91 :
What is the next number in the series: 2, 4, 6, 8, ?
A.9
B.11
C.10
D.12
Q 92 :
What comes next in the series: A, B, C, D, ?
A.F
B.E
C.G
D.H
Q 93 :
What is the missing number in the series: 1, 4, 9, 16, ?
A.20
B.36
C.30
D.25
Q 94 :
What follows in the series: 3, 6, 9, 12, ?
A.13
B.15
C.14
D.16
Q 95 :
What is the next term in the series: J, F, M, A, ?
A.M
B.J
C.S
D.O
Q 96 :
What comes next: 5, 10, 15, 20, ?
A.25
B.30
C.35
D.40
Q 97 :
What is the missing letter: A, C, E, G, ?
A.H
B.J
C.I
D.K
Q 98 :
What follows: 1, 8, 27, 64, ?
A.81
B.100
C.125
D.144
Q 99 :
What is next in the series: 10, 20, 30, 40, ?
A.45
B.55
C.50
D.60
Q 100 :
What comes after: Z, Y, X, W, ?
A.S
B.U
C.T
D.V
Mathematical Ability
Q 101 :
The cash difference between the selling prices of an article at a profit of 4% and 6% is Rs. 3. The ratio of the two selling prices is:__________ ?
A.51:52
B.52:53
C.51:53
D.52:55
Q 102 :
Which of the following numbers is irrational ?
A.√49
B.0.125
C.√2
D.22/7
Q 103 :
356 x 936 – 356 x 836 = ?
A.35600
B.34500
C.9630
D.93600
Q 104 :
Arrange in descending order: 5/8, 7/10, 3/4
A.3/4 > 7/10 > 5/8
B.7/10 > 3/4 > 5/8
C.3/4 > 5/8 > 7/10
D.5/8 > 7/10 > 3/4
Q 105 :
What is (3^{4} times 9^{2}) ?
A.36
B.38
C.310
D.96
Q 106 :
If 34X-2 = 729, then find the value of X.
A.4
B.3
C.2
D.5
Q 107 :
Convert 0.6 into fraction ?
A.3/5
B.2/3
C.4/5
Q 108 :
The no. plate of a bus had peculiarity. The bus number was a perfect square. It was also a perfect square when the plate numbers were reversed. The bus company had only five hundred buses numbered from 1 to 500. What was the number ?
A.169
B.36
C.196
D.Can not say
Q 109 :
If a and b are positive integers, such that ab = 125, then (a-b)a+b-4 = ?
A.16
B.25
C.28
D.30
Q 110 :
If x*y = x2 + y2 – xy, then value of 9*11 is
A.93
B.103
C.60.5
D.121
Q 111 :
Which is greater ?
A.15/16
B.17/18
C.Equal
D.Cannot compare
Q 112 :
If sum of two numbers is 42 and their product is 437, then find their difference.
A.3
B.4
C.5
D.7
Q 113 :
Write the 44000 in Roman numerals
A.XLI
B.XLVI
C.XLIV
D.XLVIC
Q 114 :
Convert 0.0909… into fraction ?
A.1/11
B.9/11
C.1/9
D.9/10
Q 115 :
What is (98 times 102) ?
A.9996
B.10000
C.10096
D.10196
Q 116 :
Which is smaller ?
A.9/11
B.7/9
C.Equal
D.Cannot compare
Q 117 :
Convert 0.5777… into fraction ?
A.26/45
B.52/90
C.13/22
D.5/9
Q 118 :
Convert 0.81 into fraction ?
A.81/100
B.9/10
C.8/9
D.9/11
Q 119 :
(63)2 – (12)2 =?
A.3528
B.3852
C.3582
D.3825
Q 120 :
Which is greater ?
A.13/17
B.11/14
C.Equal
D.Cannot compare
Q 121 :
16.928 + 24.7582 5.015 =?
A.20
B.24
C.22
D.26
Q 122 :
Convert 0.75 into fraction ?
A.3/4
B.2/3
C.4/5
D.5/8
Q 123 :
Which is greater ?
A.11/13
B.12/15
C.Equal
D.Cannot compare
Q 124 :
Two numbers are co-prime if their HCF is ?
A.0
B.1
C.Same
D.Prime
Q 125 :
Product of all factors of 10 is ?
A.
10
B.100
C.1000
D.10000
Q 126 :
How many real numbers exist between 2 and 3 ?
A.1
B.10
C.Infinite
D.None
Q 127 :
Which number is divisible by 11 ?
A.12345
B.1331
C.1234
D.1213
Q 128 :
What is the unit digit of (7^{245}) ?
A.1
B.3
C.7
D.9
Q 129 :
What is (64^{2/3}) ?
A.4
B.8
C.16
D.32
Q 130 :
What is (125^{1/3}) ?
A.3
B.4
C.5
D.6
English Language
Q 131 :
The Finance Department has ……………a centralized online databank system for all statutory government bodies to …………an eye on their assets and liabilities.
A. presented , stay
B.introduced , keep
C.announce , make
D.created , let
E.proclaimed , hold
Q 132 :
Assets
A.liabilities
B.responsibilities
C.estates
D.profits
Q 133 :
Affidavit
A. Affirmation
B.Slander
C.Oath
D.Testimony
Q 134 :
Hollow
A.Alveolate
B.Cleft
C. Cavernous
D.Solid
Q 135 :
Cosset
A.Ignoreb
B.Close
C.Caress
D.Fondle
Q 136 :
Ogle
A.Leer
B.Gaze
C.Ignore
D.Gawk
Q 137 :
Intrinsic
A.Elemental
B.Innate
C.Connate
D.Acquired
Q 138 :
Coalesce
A.Separate
B.Adhere
C.Cleave
D.Amalgamate
Q 139 :
Loiter
A.lag
B.Hasten
C.Amble
D.Loii
Q 140 :
The protests were......... at ......... awareness among the elite and the educated.
A.held, generating
B.aimed, creating
C.targeted, awakening
D.focused, building
E.concentrated, producing
Q 141 :
Deep-seated
A.Chronic
B.Temporary
C.inbred
D.Subconscious
Q 142 :
Vibrant
A.Drab
B.Gaudy
C.Jazzy
D.Vivid
Q 143 :
To scowl
A.To glower
B.To smirk
C.To Grimace
D.To grin
Q 144 :
I used (A)/ a pair of black trousers (B) / for a week (C)/ No error (D)
A.A
B.B
C.C
D.D
Q 145 :
Atheist
A.Skeptic
B.Pagan
C.Disciple
D.Agnostic
Q 146 :
Abdicate
A.Forgo
B.Usurp
C.Waive
D.Cede
Q 147 :
Mandarin Chinese is spoken by people.
A.Little
B.Few
C.Many
D.Big
Q 148 :
A person who is good at foreign languages is known as-
5.015 =?