Identify the correct statements from the following:
a. is used as a refrigerant ice-cream and frozen food.
b. The structure of customs12 six carbon rings and 25 five carbon rings
c. ZSM-5, a type of zeolite, is used to convent 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 (c) only
Which of the following oxide is amphoteric in nature?
Which of the following compounds is used in cosmetic surgery?
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
Which of the following species is not stable?
The incorrect statement among the following is -
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
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+.
The chain length of silicones can be controlled by adding