Question # 1

The enthalpy of reaction H2+I2--- 2HI

Choose an answer

-571.6 k J

+53.8 kJ

11 kJ

-393.5 kJ

How many elecntrons are present in the valence shell of group 1 elements.

Choose an answer

1

2

3

4

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

Elements of a period show properties.

Choose an answer

Same

Different

Both a and b

None of these

A bond formed by the mutual sharing an electron pair is called.

Choose an answer

Ionic bond

Metallic bond

Covalent bond

Coordinate covalent bond

What does keep the particles present in the nucleus intact.

Choose an answer

Particles are held together by dipolar force

Particles are held together by wee nuclear force

Particles are held together by strong nuclear force

Particles are held together by electrostatic force

Following are state of matter.

Choose an answer

Liquid

Solid

Gas

All of these

The mass of one molecule of water is.

Choose an answer

18 g

18 mg

18 kg

18 amu

Any thing that has mass and occupies space is called.

Choose an answer

Liquid

Gas

Solid

Matter

Which type of reactions speed up gradully?

Choose an answer

Decomposition reaction

Forward reaction

Reverse reactions

Irreversibel reactions

Whcih term is the same for one mole of oxgen and one mole of water.

Choose an answer

atoms

mass

Molecules

Volume

Whcih subshells are present in L - shell?

Choose an answer

S and P

Only s -sub shell

Only p - sub shell

Sub shell

Electron affinity of fluorine in kJmol-1 is

Choose an answer

-328

328

-330

-340

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