Chemistry - Questions and Answers, General Study (GK)

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131.

The shape of the ethylene molecule is

(a)Linear

(b)Coplanar Triangular

(c)Tetrahedral

(d)Hectahedral

Comment

Answer is: BNA

132.

The methane molecule has

(a)Double bond

(b)Triple bond

(c)Single covalent bond

(d)None of the above

Comment

Answer is: CNA

133.

Ionic solids

(a)Are hard and brittle

(b)Are generally high melting points

(c)Can be melted to form liquids that are electrical conductors

(d)All of the above

Comment

Answer is: DNA

134.

When a chemical bond is formed, there is decrease in

(a)Kinetic energy

(b)Potential energy

(c)Repulsive force

(d)Attractive force

Comment

Answer is: BNA

135.

Which of the following bond is the weakest?

(a)Coordinate bond

(b)Hydrogen bond

(c)Van der Waals' forces

(d)Covalent bond

Comment

Answer is: CNA

136.

In double covalent bond there is a sharing of

(a)Two electrons

(b)Four electrons

(c)Six electrons

(d)Three electrons

Comment

Answer is: BNA

137.

Covalent compounds are generally

(a)Soluble in water

(b)Insoluble in water

(c)Ionised in water

(d)Hydrolyse in water

Comment

Answer is: BNA

138.

Electrovalent compound's

(a)Melting points are low

(b)Boiling points are low

(c)Conduct current in fused state

(d)Insoluble in polar solvent

Comment

Answer is: CNA

139.

The electrovalent compound is made up of

(a)Electrically charged molecules

(b)Neutral molecules

(c)Neutral atoms

(d)Electrically charged atoms or groups of atom

Comment

Answer is: DNA

140.

Electrovalent bond formation depends on

(a)Ionisation energy

(b)Electron affinity

(c)Lattice energy

(d)All of the above

Comment

Answer is: DNA

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Chemistry - Questions and AnswersPage 14

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