Consider the following statements.

1. All single bonds are sigma bonds.

2. Multiple bonds contain one sigma bond only, the other bonds are pi bonds.

3. Pi bonds is never formed alone.

Which of the statements given above are correct?

With reference to hydrogen bonding, consider the following statements.

1. The organic compounds like alkanes, alkanes, alkynes are soluble in water due to absence of H-bonding.

2. Alcohols, organic acids, amines are soluble in water due to the presence of H-bonding.

Which of the statements given above is/are correct?

Match List I with List II and select the correct answer using the codes given below the List.
List I                       List II

A. Ionic bond             1. NaCI

B. Covalent bond       2. Diamond

C. Molecular bond     3. Iodine

D. Hydrogen bond     4. NH3

Consider the following statements.

1. Hydrogen bond is the strongest of the intermolecular bonds.

2. All hydrogen bonding molecule have dipole interactions.

Which of the above are correct?

Carbon tetrachloride has no net dipole moment because of.

Match List I with List II and select the correct answer using the codes given below the List.
    List I              List II
   (Example)     (Bond angle)

A. H₂O           1. 104° 27'

B. CO₂          2. 180°

C. SO₂          3. 109°28'

D. CH₄          4. 120°