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

Question : 1

Select the one that is having pH < 7.

a) lime water

b) human blood

c) lime juice

d) antcid.

Question : 2

When a few drops of lemon are mixed with milk

1. It turns sour
2. No change takes place
3. Properties of milk are changed
4. Properties of milk remain the same

a) (i) and (ii)

b) (i) and (iii)

c) (ii) and (iii)

d) (i) only

Question : 3 [NDA]

The following equation is an example of a redox reaction, in which Cl₂ is the oxidizing agent and FeBr₃ is the reducing agent :
2FeBr₃ (aq) + 3Cl₂ (g) = 2FeCl ₃(aq) + 3Br₂ (1)
Which one among the following statements is incorrect for this redox reaction?

a) Reducing agents are themselves oxidized

b) Oxidizing agents are themselves reduced

c) Reducing agents gain or appear to gain electrons

d) Oxidizing agents oxidize other substances

Question : 4 [UP (Pre) 2002]

Match List-I with List-II:

a) 4 1 2 3

b) 4 2 3 1

c) 1 3 4 2

d) 3 2 1 4

Question : 5

The presence of which of the following acid causes indigestion:

a) Oxalic acid

b) Acetic acid

c) Citric acid

d) Hydrochloric acid