Identify the correct statements from the following:

a. CO2(g) is used as a refrigerant ice-cream and frozen food.

b. The structure of C60 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

Subtopic:  Carbon Family - Preparations, Properties & Uses | Compounds of Carbon, Preparations, Properties & Uses |
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Which of the following oxide is amphoteric in nature?

1. SnO2

2. SiO2

3. GeO2

4. CO2

Subtopic:  Carbon Family - Preparations, Properties & Uses |
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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

Subtopic:  Carbon Family - Preparations, Properties & Uses |
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Which of the following species is not stable?

1.  SiCl62-

2.  SiF62-

3.  GeCl62-

4.  SnOH62-

Subtopic:  Carbon Family - Preparations, Properties & Uses |
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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

Subtopic:  Boron Family- Preparations, Properties & Uses |
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Which of the following compounds is used in cosmetic surgery?

1. Silica

2. Silicates

3. Silicones

4. Zeolites

Subtopic:  Properties of Structure of SiO2 & Other Compounds |
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Which of the following statement is not correct about diborane?
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 two centre two electron bonds.
4. The four terminal Hydrogen atoms and the two Boron atoms lie in one plane.
Subtopic:  Compounds of Boron- Preparations, Properties & Uses |
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Choose the correct statement:
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.
Subtopic:   Structure & Properties of Allotropes of C |
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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+.

Subtopic:  Boron Family- Preparations, Properties & Uses |
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The chain length of silicones can be controlled by adding
1.  \(CH_3SiCl_3\)
2.  \(SiCl_4\)
3.  \((CH_3)_2SiCl_2\)
4.  \((CH_3)_3SiCl\)

Subtopic:  Properties of Structure of SiO2 & Other Compounds |
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