Data:
mass =10 g
quantity of heat supplied =120 J
rise in temperature = 10 °C

Statement A : The heat capacity of the substance is 12 J/g.

Statement B : The specific heat capacity of the substance is 1.2 J/gK.

1. Only statement A is correct.
2. Only statement B is correct.
3. Both statements A and B are correct.
4. Both statements A and B are incorrect.

Given that the resistivity of Gold and Platinum is 2.1 x 10^-8 ohm.m and 10.5 x 10^-8 ohm.m, respectively, which is the correct statement?

Statement A : 5 metres of platinum wire will have the same resistance as one metre of gold wire.

Statement B : Gold wire of 1 cm radius will have the same resistance as platinum wire of 5 cm radius.

1. Only statement A is correct.
2. Only statement B is correct.
3. Both statements A and B are correct.
4. Both statements A and B are incorrect.

The given rods will attract each other when:

1. A and C are connected to positive terminal of the battery.
2. B and C are connected to the positive terminal of the battery.
3. A and D are connected to the positive terminal of the battery.
4. A and D are connected to the negative terminal of the battery.

Which of the following equations are correctly balanced?

$\bold{A.} \quad \phantom{X}^{q-1}${p-5}X \longrightarrow \phantom{X}^{q-5}{p-3}Y + \phantom{X}^{4}{2}He \\[1em] \bold{B.} \quad \phantom{X}^{q-4}{p-4}Z \longrightarrow \phantom{X}^{q-4}{p-5}X + \phantom{X}^{\phantom{1}0}{-1}e \\[1em] \bold{C.} \quad \phantom{X}^{q-1}{p-5}X \longrightarrow \phantom{X}^{q-5}{p-7}Y + \phantom{X}^{4}{2}He \\[1em] \bold{D.} \quad \phantom{X}^{q-4}{p-7}Z \longrightarrow \phantom{X}^{q-4}{p-5}X + \phantom{X}2^{\phantom{1}0}{-1}e \\[1em]

1. Only D
2. Only C
3. Both A & B
4. Both C & D