Compound of sulphur that has linkage among the following is:
1.
2.
3.
4.
A compound 'X' upon reaction with produces a colorless gas 'Y' with rotton fish smell. Gas 'Y' is absorbed in a solution of to give as one of the products. Predict the compound 'X'
1.
2.
3.
4.
Which one of the following reactions does not come under hydrolysis type reaction?
1. \(\mathrm{S i C l_{4 \left(\right. l \left.\right)} + 2 H_{2} O_{\left(\right. l \left.\right)} \rightarrow S i O_{2 \left(\right. s \left.\right)} + 4 H C l_{\left(\right. a q \left.\right)}}\)
2. \(\mathrm{L i_{3} N_{\left(\right. s \left.\right)} + 2 H_{2} O_{\left(\right. l \left.\right)} \rightarrow N H_{3 \left(\right. g \left.\right)} + 3 L i O H_{\left(\right. a q \left.\right)}}\)
3. \(\mathrm{2 F_{2 \left(\right. g \left.\right)} + 2 H_{2} O_{\left(\right. l \left.\right)} \rightarrow 4 H F_{\left(\right. a q \left.\right)} + O_{2 \left(\right. g \left.\right)}}\)
4. \(\mathrm{P_{4} O_{10 \left(\right. s \left.\right)} + 6 H_{2} O_{\left(\right. l \left.\right)} \rightarrow 4 H_{3} P O_{4 \left(\right. a q \left.\right)}}\)
Identify the correct formula of 'oleum' from the following
1. H2S2O7
2. H2SO3
3. H2SO4
4. H2S2O8
Among the following oxoacids of phosphorus, the strongest reducing property is for:
1. H4P2O7
2. H3PO3
3. H3PO2
4. H3PO4
A compound "X", upon reaction with H2O, produces a colourless gas "Y" with a rotten fish smell. Gas 'Y' is absorbed in a solution of CuSO4 to give Cu3P2 as one of the products. The compound 'X' will be:
1. Ca3P2
2.
3.
4. Ca3(PO4)2
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) |
Wrong statement among the following is:
1. Bond energy of F2 > Cl2
2. Electronegativity of F > Cl
3. F is more oxidizing than Cl
4. Electron affinity of Cl > F
From the given options, the compound that has a planar structure is:
1. XeF4
2. XeOF2
3. XeO2F2
4. XeO4