The element that does not show catenation among the following p-block elements is ________.

(a)

Carbon

(b)

silicon

(c)

Lead

(d)

germanium

Carbon atoms in fullerene with formula C₆₀ have _______hybridisation.

(a)

sp³ hybridised

(b)

sp hybridised

(c)

sp² hybridised

(d)

partially sp² and partially sp³ hybridised

The basic structural unit of silicates is _______.

(a)

\(\left( SiO_{ 3 } \right) ^{ 2- }\)

(b)

\(\left( SiO_{ 4 } \right) ^{ 2- }\)

(c)

\(\left( Sio \right) ^{ - }\)

(d)

\(\left( SiO_{ 4 } \right) ^{ 4- }\)

Chemical formula of phosgene is_______.

(a)

COCl₂

(b)

CaOCl₂

(c)

CaCO₃

(d)

COCI

SiO₄^4- ion has ____ geometry.

(a)

Triangular

(b)

Tetrahedral

(c)

Linear

(d)

Pentagonal bipyramidal

Give the uses of Borax

What is catenation ? describe briefly the catenation property of carbon.

Give the structure of CO and CO₂.

Mention the physical properties of boranes.

Give the uses of alum.

AlCl₃ behaves like a lewis acid. Substantiate this statement.

Write a short note on hydroboration.

Write a note on metallic nature of p-block elements.

Describe the structure of fullerenes.

Describe the structure of graphene.

Write a note on zeolites.

CO is a reducing agent. Justify with an example.

What are the various methods by which carbon-di-oxide is prepared?

Distinguish between diamond and graphite.