Sodium having atomic number 11, is ready to_______________electron/electrons to attain the nearest noble gas electronic configuration.

(a)

gain one

(b)

gain two

(c)

lose one

(d)

lose two

The element that would form anion by gaining electrons in a chemical reaction is ___________.

(a)

Potassium

(b)

Calcium

(c)

Fluorine

(d)

Iron

____________compounds have high melting and boiling points.

(a)

Covalent

(b)

Coordinate

(c)

Ionic

(d)

Coordinate

Oxidising agents are also called as____________because they remove electrons form other substances.

(a)

electron donors

(b)

electron acceptors

(c)

reducing agents

(d)

Ionic agents

Alkali and alkaline earth metals form____________ compound when they react with nonmetals

(a)

ionic

(b)

covalent

(c)

co-ordinate covalent

(d)

all the above

The bond which is formed by mutual sharing of electrons is called ________bond.

(a)

ionic

(b)

covalent

(c)

co-ordinate covalent bond

(d)

all the above

_______________is an example of a covalent compound having high melting point

(a)

Magnesium oxide

(b)

Silicon carbide

(c)

Ammonia

(d)

All the above

Which of the following compound(s) possesses high melting point?

(a)

NaCI

(b)

MgCI₂

(c)

CCl₄

(d)

Both a & b

Statement (A) : Covalent compounds are bad conductor of electricity.
Reason (B) Covalent compounds contain charged particles (ions)

(a)

B explains A

(b)

B does not explain A

(c)

Both A & B are right

(d)

Both A & B are wrong

The property which is characteristics of an Ionic compound is that

(a)

it often exists as gas at room temperature

(b)

it is hard and brittle

(c)

it undergoes molecular reactions

(d)

it has low melting point