Question # 1

Elments re classified into four blocks depending upon

Choose an answer

Shell

Atomic mass

Sub -Shell

Atomic Number

Which branch of chemistry deals with elements and compounds is earth's crust.

Choose an answer

Polymer chemistry

Organic chemistry

Geochemistry

Physical chemistry

Which molecule contains a single vovalent bond.

Choose an answer

CH4

C2H4

C2H2

O2

/which of the followign elements is presnt in group IA.

Choose an answer

Lithium

Hydrogen

Sodium

All of these

In the beginning the rate of reverse reaction is.

Choose an answer

Slow

very fast

Moderate

Negligible

Uni of electron affinity is.

Choose an answer

k J mol-1

k jmol

pm

Newton

Main group elements are arranged in ..............groups.

Choose an answer

7

6

8

10

Which are good conductor of heat and electricity

Choose an answer

Metals

Non metals

Metalloids

All of these

What mass of 95% CaCO3 will be requred to neutralize 50 cm 3 of 0.5 M HCl solution.

Choose an answer

9.5 g

1.45 g

1.32 g

1.25 g

Whcih of the following atoms willnot form cation or anion.

Choose an answer

Atomic no. 16

Atomic no. 18

Atomic no. 17

Atomic No. 19

Industrialy, ammonia is produced by which process.

Choose an answer

Halogenation

Solvay process

Haber Process

Hydrogenation

How many moels of molecules are there in 16 g oxygen.

Choose an answer

0.05

0.1

0.5

1

Alkalis react with ammonium salts to librate.

Choose an answer

CO2

SO2

H2

NH3

More Classes

Other Links

Chemistry 9th Class English Medium Online Test MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer