Model Question Chemistry for BAMS

CHEMISTRY: 20 questions out of 100

1.       1. Aniline undergoes condensation to form Schiff base on reacting with.

a. acetone            b. ammonia         c. benzaldehyde  d. actylchloride

2.       2. Which one is least basic;

a. NF₃                            b. NCl₃       c. NBr₃                d. NI₃

3.       3. A colligative property is,

a. boiling point                      b. vapour pressure

c. osmotic pressure                d. none

4.       4. In the brown ring complex, compound formulated as; - [Fe(H₂O)₅ NO]⁺². The oxidation state of Fe is,

a. +3                    b. zero        c. +2                    d. +1

5.       5. Milk is;

a. fat dispersed in milk          b. fat dispersed in water

c. water dispersed in fat        d. water dispersed in oil

6.       6. The specific rate of a 1^st order reaction depends upon;

a. concentration of reactants b. concentration of products

c. time                                              d. temperature

7.       7. Impure glycerin can be purified by;

a. steam distillation      b. simple distillation

c. vacuum distillation  d. extraction with a solvent

8.       8. Setting of cement is;

a. exothermic process b. endothermic process

c. either a. or b.            d. none

9.       9. Ideal gas obeys gas laws (PV=nRT) under;

a. low pressure, high temperature  b.high pressure, low temperature

c. low pressure, low temperature     d. all condition of temperature & pressure

10.  10. Stability of alkanes is explained of the basis of;

a. resonance                  b. hyper conjugation

c. inductive effects       d. mesmerism

11.  11. 1^o, 2^o & 3^o alcohols are distinguished by;

a. Hinsberg test            b. Hoffman’s test

c. victor Meyer test      d. Beilstin test

12.  12. Laughing gas is prepared by heating;

a. NH4Cl                      b. (NH4)2SO4

c. NH4Cl+NaNO3       d.NH4NO3

13.  13. Bleaching powder is an example of;

a. double salt                b. mixed salt

c. complex salt             d. normal salt

14.  14. The reaction of HCOOH with conc.H₂SO₄ gives;

a. oxalic acid                 b. acetic acid

c. CO₂                           d. CO

15.  15. Which of the following doesn’t gives iodoform test;

a. CH₃CH₂OH     b. CH₃OH           c. CH₃CHO         d. CHCOHCH₃

16.  16. The addition of TEL to petrol,

a. lowers the octane no:        b. rises the octane no:

c. no effects                            d. none

17. Hybridization of carbon in C₂H₂  is

         a.sp³          b.sp²            c.sp          d.sp³d

18.If chloroform is left open in presence of sunrays:

        a.Explosion takes place         b.Poisonous gas is formed.

       c.Polymerization takes place  d.Nothing happens

19.Which of the following species is paramagnetic?

        a.O₂^-                 b.CN^-                    c.CO              d.NO⁺

20.Formic acid and acetic acid can be distinguished by:

       a.Litmus  b.NaHCO₃    c.Caustic soda   d.Ammonical AgNO_3
 Answers

1.    c	2.    a	3.    c	4.    d	5.    b
6.    d	7.    c	8.    a	9.    d	10.        b
11.        c	12.        d	13.        b	14.        d	15.        b
16.        b	17.        c	18.        b	19.        a	20.        d