10 g of hydrogen and 64 g of oxygen were filled in a steel vessel and exploded. The amount of water produced in this reaction will be:

1. 2 mol

2. 3 mol

3. 4 mol

4. 1 mol

The energy absorbed by each molecule (A₂) of a substance is 4.4 x 10^-19 J and bond energy per molecule is 4.0 x 10^-19 J. The kinetic energy of the molecule per atom will be:

1. $2.0\times {10}^{-20}$ $J$

2. $2.2\times {10}^{-19}$ $J$

3. $2.0\times {10}^{-19}$ $J$

4. $4.0\times {10}^{-20}$ $J$

The straight-chain polymer is formed by:

The stability of the +1 oxidation state increases in the sequence:

1. Al <Ga<In<Tl

2. Tl<In<Ga<Al

3. In<Tl<Ga<Al

4. Ga<In<Al<Tl

The product 'Z' in the below-mentioned reaction is:

1. $C{H}_2=C{H}_2$

2. $C{H}_{3}C{H}_2-O-C{H}_2-C{H}_3$

3. $C{H}_3-C{H}_2-O-S{O}_{3}H$

4. $C{H}_{3}C{H}_{2}OH$

A 0.0020 m aqueous solution of an ionic compound Co(NH₃)₅(NO₂)Cl freezes at -0.0073 ^oC. The number of moles of ions that 1 mol of ionic compound produces on being dissolved in water will be:
(K_f = -1.86 ^oC/m)

What is the dominant intermolecular force or bond that must be overcome in converting liquid CH₃OH to a gas?

1. Hydrogen bonding

2. Dipole-dipole interaction

3. Covalent bonds

4. London dispersion force

Benzene reacts with CH₃Cl in the presence of anhydrous AlCl₃ to form:

Which of the following sets of quantum numbers is incorrect?
1. n= 4, l= 0, m= 0, s= -1/2
2. n= 5, l= 3, m= 0, s= +1/2
3. n= 3, l= 2, m= -3, s= -1/2
4. n= 3, l= 2, m= 2, s= -1/2