MCQs Questions NEET 

1. Which of the following compounds will give a yellow precipitate with iodijie and alkali?
(a) Acetophenone 
(b) Methyl acetate
(c) Acetamide
(d) 2-hydroxypropane
Ans (d)

2.  Which of the following compounds can be used as antifreeze in automobile radiators?
(a) Methyl alcohol
(b) Glycol
(c) Nitrophenol
(d) Ethyl alcohol
Ans (b)
 
3. Structure of a mixed oxide is cubic close packed (ccp). The cubic unit cell of mixed oxide is composed of oxide ions. One fourth of the tetrahedral voids are occupied by divalent metal A and the octahedral voids are occupied by a monovalent metal B. The formula of the oxide is
(a) ABO2
(b) A2BO2
(c) A2B3O4
(d) AB2O2
Ans (d)

4. Equal volumes of two monoatomic gases, A and B , at same temperature and pressure are mixed. The ratio of specific heats (cp / cv) of the mixture will be
(a) 0.83
(b) 1.50
(c) 3.3
(d) 1.67
Ans ( d)

5.The catalytic activity of transition metals and their compounds is ascribed mainly to
(a) their magnetic behaviour
(b) their unfilled d-orbitals
(c) their ability to adopt variable oxidation states
(d) their chemical reactivity
Ans (c)
 
6. Which of the following exhibits only +3 oxidation state?
(a) U 
(b) Th 
(c) Ac 
(d) Pa 
Ans (c)
 
7. Which one of the following pairs is wrongly matched?
(a) Ginkgo — Archegonia
(b) Salvinia   — Prothallus
(c) Viroids — RNA
(d) Mustard — Synergids
Ans (b)

8. In the five-kingdom classification, Chlamydomonas and Chlorella have been induced in
(a) Protista
(b) Algae
(c) Plantae
(d) Monera
Ans (c)
 
9. For its activity, carboxypeptidase requires 
(a) zinc
(b) iron 
(c) niacin
(d) copper
Ans (a)
 
10.  Which one of the following structures is an organelle within an organelle?
(a) Ribosome
(b) Peroxisome
(c) ER
(d) Mesosome
Ans (a)
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