SSC CGL (GA) QUIZ

Question 1:

Carbon tetrachloride is a -

Polar molecule

Non-polar molecule

Both 1 and 2

Neither 1 nor 2

Question 2:

Which of the following molecule has zero net dipole moment?

Hydrogen chloride

Ammonia

Formaldehyde

Carbon dioxide

Question 3:

Which one of the following is not the drawback of octet theory ?

This theory does not account for the shape of molecules.

It does not explain the relative stability of the molecules

Some noble gases (for example xenon and krypton) also combine with oxygen and fluorine to form a number of compounds

Sulphur also forms many compounds in which the octet rule is obeyed.

Question 4:

NaCl is a ionic compound because

It is formed by sharing of electrons

It is formed by transfer of electrons

Both 1 and 2

None of these

Question 5:

Which among the following is non polar molecule?

$\mathrm{NH}_{3}$

$\mathrm{H}_{2} \mathrm{O}$

$\mathrm{NF}_{3}$

$\mathrm{BF}_{3}$

Question 6:

Which of the following has the greatest ionic character ?

NaCl

BaCl₂

FeCl₃

KCl

Question 7:

HF is a liquid and HCl is a gas because

Fluorine form a stronger hydrogen bond than chlorine

Florine is less electronegative

Fluorine forms a weak hydrogen bond than chlorine

Chlorine has smaller atomic radii than Fluorine.

Question 8:

Which one has the highest bond order?

Dioxygen

Dihydrogen

Cyanide

Chlorine gas

Question 9:

Which of the following compounds contains an ionic bond?

CHCl

NaCl

NH3

CH3

Question 10:

Which of the following statements is incorrect about ionic solids?

They are Hard and brittle in nature.

They have high melting and boiling points.

They don't conduct electricity as solids.

They are insoluble in water.