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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In diborane, the two H-B-H angles are nearly-

1. 60°, 120°

2. 97°,120°

3. 97°,150°

4. 120°, 180°

Subtopic:  Compounds of Boron- Preparations, Properties & Uses |
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A compound that gives propyne on hydrolysis is -

1. Al4C3

2. Mg2C3

3. B4C

4. La4C3

Subtopic:  Compounds of Carbon, Preparations, Properties & Uses |
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Litharge is not commonly used in:

1. Manufacture of special glasses

2. Glazing pottery

3. Preparing paints

4. Lead storage battery

Subtopic:  Properties of Glass, Pb & Sn compounds |
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The products formed on heating Pb(NO3)2 are -

1. PbO, N2, O2

2. Pb(NO2 )2, O2

3. PbO, NO2, O2

4. Pb, N2, O2

Subtopic:  Properties of Glass, Pb & Sn compounds |
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Mellitic acid is formed by the oxidation of graphite with -

1. Chromic acid

2. Alkaline KMnO4

3. Fuming HNO3

4. dil. HNO3

Subtopic:  Boron Family- Preparations, Properties & Uses |
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The most volatile compound among the following is -

1.  CH4

2.  SiH4

3.  GeH4

4.  SnH4

Subtopic:  Carbon Family - Preparations, Properties & Uses |
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In aluminates, the co-ordination number of Al is-

1. 3

2. 6

3. 1

4. 4

Subtopic:  Boron Family- Preparations, Properties & Uses |
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A mixed oxide compound among the following is -

1.  PbO2

2.  SnO2

3.  Pb2O3

4.  Pb3O4

Subtopic:  Carbon Family - Preparations, Properties & Uses |
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Select the correct statement(s) regarding the following reaction sequence

 
   

1.  The compound (A) is CH32SiCl2

2.  The compound D is SiC

3.  The compound (B) is CH32SiOH2

4.  All of the above

Subtopic:  Carbon Family - Preparations, Properties & Uses |
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