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chemistry quiz

Total questions: 11

Worksheet time: 21mins

Name
Class
Date
1.

Caustic soda is the common name for

a)

Mg(OH)2

b)

KOH

c)

Ca(OH)2

d)

NaOH

2.

Which one of the following is a weak acid?

a)

HCl

b)

H2CO3

c)

H2SO4

d)

HNO3

3.

Solutions A, B, C and D have pH 3, 4, 6 and 8. The solution with highest acidic strength is

a)

A

b)

B

c)

C

d)

D

4.

Generally a base is a compound,

a)

Which reacts with an acid to give salt and water.

b)

Which reacts with a proton of an acid.

c)

Which on dissolving in water furnishes OH– ions.

d)

All are correct.

5.

A base which is soluble in water is called:

a)

a salt

b)

an acid

c)

an alkali

d)

None of these

6.

Which salt is Acidic in nature?

a)

NH4Cl

b)

CH3COONH4

c)

NaCl

d)

Na2CO3

7.

what happens when we hydrate plaster of paris?

a)

it forms gypsum

b)

it becomes plaster of france

c)

it becomes liquid of paris

d)

it becomes compost

8.

copper crystalls are blue in colour and when heated it turns into (a)   colour

9.

did you find this useful??

a)

yes

b)

no

10.

How many valency does carbon have

(a)  

11.

90% of naturally occuring compounds are organic in nature due to ________ and ________ .

(a)