Which of the statements given below is incorrect?
1. \(\mathrm{C l_{2} O_{7 }}\)is an anhydride of perchloric acid
2. \(\mathrm{O_{3}}\) molecule is bent
3. ONF is isoelectronic with \(\mathrm{N O_{2}^{-}}\)
4. \(\mathrm{O F_{2}}\) is an oxide of fluorine
The acidity of diprotic acids in aqueous solution increases in the order:
1. H2S < H2Se < H2Te
2. H2Se < H2S < H2Te
3. H2Te < H2S < H2Se
4. H2Se < H2Te < H2S
Sulphur trioxide can be obtained by which of the following reaction:
1.
2.
3.
4.
The given sequence among the following arrangements that is not strictly according to the property indicated against it.
1. | \(\small{\text{increasing} \ p K_{a}\ \text{values}}\) | H2O < H2S < H2Se < H2Te :
2. | \(\small{\mathrm{N H_{3} < P H_{3} < A s H_{3} < S b H_{3}} : \text{increasing acidic character}}\) |
3. | \(\small{\mathrm{C O_{} < S i O_{} < S n O_{} < P b O_{2}} : \text{increasing oxidising power}} \) |
4. | \(\small{\mathrm{H F < H C l < H B r < H I} : \text{increasing acidic strength}} \) |
Match List-I (substances) with List-II (processes) employed in the manufacture of the substances and select the correct option.
List –I (Substances) | List – II (Processes) |
(a) Sulphuric acid | (i) Haber's Process |
(b) Steel | (ii) Bessemer's Process |
(c) Sodium carbonate | (iii) Leblanc Process |
(d) Ammonia | (iv) Contact Process |
Options : | (a) | (b) | (c) | (d) |
1. | (i) | (ii) | (iii) | (iv) |
2. | (iv) | (iii) | (ii) | (i) |
3. | (iv) | (ii) | (iii) | (i) |
4. | (i) | (iv) | (ii) | (iii) |