Mellitic acid is formed by the oxidation of graphite with -
1. Chromic acid
2. Alkaline
3. Fuming
4. dil.
The most volatile compound among the following is -
1.
2.
3.
4.
The coordination number of Al in aluminates, is-
1. | 3 | 2. | 6 |
3. | 1 | 4. | 4 |
A mixed oxide compound among the following is -
1.
2.
3.
4.
Select the correct statement(s) regarding the following reaction sequence:
1. The compound (A) is
2. The compound D is SiC
3. The compound (B) is
4. All of the above
A species among the following that decomposes easily is: -
1. | \(\mathrm{Pbl}_2 \) | 2. | \(\mathrm{Pbl}_4 \) |
3. | \(\mathrm{PbCH}_3 \mathrm{COO}_4 \) | 4. | \(\mathrm{PbCl}_2\) |
A strong oxidizing agent among the following is -
1.
2.
3.
4.
From the following, the compound(s) that react(s) with \(\mathrm{BF}_3\) is/are -
1. | Ethers | 2. | \( \mathrm{H}_2 \mathrm{O} \) |
3. | \(\mathrm{NH}_3 \) | 4. | All of the above |
The products formed by the oxidation of are:
1.
2.
3.
4.
Ionization enthalpy () for the elements of Group 13 follows the order.
1. | B > Al > Ga > In > Tl | 2. | B < Al < Ga < In < Tl |
3. | B < Al > Ga < In > Tl | 4. | B > Al < Ga > In < Tl |