CHEMISTRY ONLINE TEST 14

1 / 10

Lead storage batteries contain —

PbO₂ and Pb

Pb₂O₃

PbCl₂

PbSO₄ only

2 / 10

Which of the following is known as artificial diamond?

Graphite

Silicon carbide

Fullerene

Carbon nanotube

3 / 10

Which element forms both covalent and ionic compounds?

Carbon

Tin

Silicon

Lead

4 / 10

The correct order of acidic strength of oxides is —

SnO₂ < SiO₂ < CO₂

CO₂ < SiO₂ < SnO₂

CO₂ < SnO₂ < SiO₂

SiO₂ < CO₂ < SnO₂

5 / 10

The most stable oxidation state of tin (Sn) is —

0

+2

+4

+3

6 / 10

Which compound is used in the manufacture of cement?

SiO₂

CaCO₃

CO₂

C (graphite)

7 / 10

Silicones are polymers of —

SiO₂

SiC

R₃SiH

R₂SiO

8 / 10

Which allotrope of carbon is used as a lubricant?

Diamond

Fullerene

Carbon black

Graphite

9 / 10

Which of the following elements shows maximum metallic character in Group 14?

Pb

C

Si

Ge

10 / 10

The oxidation state of carbon in HCOOH (formic acid) is —

+1

+2

+4

0

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CHEMISTRY ONLINE TEST 14

Chemistry online test 14 for NEET EAPCET and JEE

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