acids, bases, salts and metals - Category wise Question and Answer Practice Test with Solutions

Question : 11

When the stopper of a bottle containing colourless liquid was removed, the bottle gave smell like that of vinegar. The liquid in the bottle could be

a) sodium hydroxide solution

b) acetic acid solution

c) hydrochloric acid

d) saturated sodium hydrogen carbonate solution

Question : 12 [PCS (Pre) 2013]

Which is not a Lewis acid?

a) $BF_3$

b) $NH_3$

c) $AlCl_3$

d) $FeCl_3$

Question : 13

Match Column-I with Column-II:

a) A – Q; B – R; C – S; D – P

b) A – Q; B – R; C – P; D – S

c) A–R; B–Q; C–P; D–S

d) A – R; B – Q; C – S; D – P

Question : 14 [NDA]

Arrange the following bases in increasing order of their, basic strength

1. Sodium hydroxide
2. Magnesium hydroxide.
3. Aluminium hydroxide
4. Ammonium hydroxide

a) 4 3 2 1

b) 4 2 1 3

c) 4 1 2 3

d) 1 2 3 4

Question : 15

Acids are ____________ in taste while bases are ____________ in taste.

a) sweet, sour

b) sour, salty

c) sweet, salty

d) sour, bitter