Q. No.Aluminium chloride in acidified aqueous solution forms a complex 'A'.
The formula of A and hybridisation state of Al in 'A' is respectively:
1. [Al(H2O)6]3+, sp3d2
2. [Al(H2O)4]3+, sp3
3. [Al(H2O)4]3+, dsp2
4. [Al(H2O)]3+, d2sp3
The formula of A and hybridisation state of Al in 'A' is respectively:
The compound among the following that used in cosmetic surgery is:
1. Silica
2. Silicates
3. Silicones
4. Zeolites
Which of the following statements is incorrect?
1. SnF4 is ionic in nature.
2. PbF4 is covalent in nature.
3. SiCl4 is easily hydrolysed.
4. GeX4 (X = F, Cl, Br, I) is more stable than GeX2
Identify the correct statements from the following:
| (a) | \(\mathrm{CO}_2(\mathrm{~g})\) is used as a refrigerant ice cream and frozen food. |
| (b) | The structure of \(\mathrm{C}_{60} \) customs12 six carbon rings and 25 five carbon rings |
| (c) | ZSM-5, a type of zeolite, is used to convert alcohol into gasoline. |
| (d) | CO is a colorless and odorless gas. |
| 1. | (a) and (c) only | 2. | (b) and (c) only |
| 3. | (c) and (d) only | 4. | (a), (c) and (d) only |
| 1. | Both the boron atoms are sp2 hybridised. |
| 2. | There are two 3-centre-2-electron bonds. |
| 3. | The four terminal B-H bonds are 2-centre-2-electron bonds. |
| 4. | The four terminal hydrogen atoms and the two boron atoms lie in one plane. |
| 1. | Both diamond and graphite are used as dry lubricants. |
| 2. | Diamond and graphite have a two-dimensional network. |
| 3. | Diamond is covalent, and graphite is ionic. |
| 4. | Diamond is sp³ hybridised, and graphite is sp² hybridized. |
Which of the following is the correct statement?
1. Ga+ is more stable than ln+.
2. Al+ is more stable than ln+.
3. Ga+ is more stable than Al+.
4. Al+ is more stable than Ga+.
| 1. | \(\mathrm{CH_3SiCl_3}\) | 2. | \(\mathrm{SiCl_4}\) |
| 3. | \(\mathrm{(CH_3)_2SiCl_2}\) | 4. | \(\mathrm{(CH_3)_3SiCl}\) |
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