Match the items in Column I with its main use listed in Column II : Column I Column II A Silica gel i . Transistor B Silicon ii . Ion-exchanger C Silicone iii . Drying agent D Silicate iv . Sealant

A - iii , B - i , C - iv , D - ii

A - iv , B - i , C - ii , D - iii

A - ii , B - i , C - iv , D - iii

A - ii , B - iv , C - i , D - iii

A tin chloride Q undergoes the following reactions (not balanced) Q + C l - → X Q + M e 3 N → Y Q + C u C l 2 → Z + C u C l X is a monoanion having pyramidal geometry. Both Y and Z are neutral compounds. Choose the correct option(s).

There is a coordinate bond in Y

The oxidation state of the central atom in Z is + 2

The central atom in Z has one lone pair of electrons

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Silicon tetrachloride is prepared by of various silicon compounds such as ferrosilicon, silicon carbide, or mixtures of silicon dioxide and carbon.

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Important Questions on The p-Block Elements

EASY

Chemistry>Inorganic Chemistry>The p-Block Elements>Other Important Compounds of Group 14 Elements

What product is formed when

HF

reacts with glass?

EASY

Chemistry>Inorganic Chemistry>The p-Block Elements>Other Important Compounds of Group 14 Elements

Identify the correct statements from the following:
(a)

{CO}_{2} (g)

is used as a refrigerant for ice cream and frozen food.
(b) The structure of

C_{60}

contains twelve six-membered carbon rings and twenty-five membered carbon rings.
(c)

ZSM - 5

, a type of zeolite, is used to convert alcohols into gasoline.
(d)

CO

is a colourless and odourless gas.

MEDIUM

Chemistry>Inorganic Chemistry>The p-Block Elements>Other Important Compounds of Group 14 Elements

Among the following substituted silanes, the one which will give rise to cross linked silicone polymer on hydrolysis is?

MEDIUM

Chemistry>Inorganic Chemistry>The p-Block Elements>Other Important Compounds of Group 14 Elements

The main reason that

{SiCl}_{4}

is easily hydrolysed as compared to

{CCl}_{4}

is that

MEDIUM

Chemistry>Inorganic Chemistry>The p-Block Elements>Other Important Compounds of Group 14 Elements

Match the items in Column

I

with its main use listed in Column

II

	Column $I$		Column $II$
$A$	Silica gel	$i .$	Transistor
$B$	Silicon	$ii .$	Ion-exchanger
$C$	Silicone	$iii .$	Drying agent
$D$	Silicate	$iv .$	Sealant

MEDIUM

Chemistry>Inorganic Chemistry>The p-Block Elements>Other Important Compounds of Group 14 Elements

Si

reacts with

{CH}_{3} Cl

573 K

in the presence of

Cu

powder to form methyl substituted chlorosilanes. Among the given methyl substituted chlorosilanes, whose yield is minimum?

EASY

Chemistry>Inorganic Chemistry>The p-Block Elements>Other Important Compounds of Group 14 Elements

The correct statement about silicone is

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Chemistry>Inorganic Chemistry>The p-Block Elements>Other Important Compounds of Group 14 Elements

Which of the following organo-silicon compound on hydrolysis will given a three dimensional silicon ?

EASY

Chemistry>Inorganic Chemistry>The p-Block Elements>Other Important Compounds of Group 14 Elements

A tin chloride

Q

undergoes the following reactions (not balanced)

Q + C l^{-} \to X

Q + M e_{3} N \to Y

Q + C u C l_{2} \to Z + C u C l

X

is a monoanion having pyramidal geometry. Both

Y

and

Z

are neutral compounds. Choose the correct option(s).

EASY

Chemistry>Inorganic Chemistry>The p-Block Elements>Other Important Compounds of Group 14 Elements

The basic structural unit of feldspar, zeolites mica, and asbestos is:

EASY

Chemistry>Inorganic Chemistry>The p-Block Elements>Other Important Compounds of Group 14 Elements

Identify the incorrect statements from the following

I .

Tin in

+ 2

state acts as reducing agent while lead in

+ 4

state acts as strong oxidising agent.

II .

Silicon exists as both

{[{SiF}_{6}]}^{2 -}

and

{[{SiCl}_{6}]}^{2 -}

forms.

III .

The hybridisation of carbon in fullerene is

{sp}^{3}

IV .

Among

Ge, Sn

and

Pb

lowest melting point is for

Sn

MEDIUM

Chemistry>Inorganic Chemistry>The p-Block Elements>Other Important Compounds of Group 14 Elements

The gas evolved on heating

{CaF}_{2}

and

{SiO}_{2}

with concentrated

H_{2} {SO}_{4}

, on hydrolysis gives a white gelatinous precipitate. The precipitate is:

MEDIUM

Chemistry>Inorganic Chemistry>The p-Block Elements>Other Important Compounds of Group 14 Elements

Formic acid reacts with concentrated

H_{2} {SO}_{4}

100 ° C

to liberate

A

. When

A

is passed over heated ferric oxide,

B

and

C

are formed. What are

A, B

and

C

, respectively?

MEDIUM

Chemistry>Inorganic Chemistry>The p-Block Elements>Other Important Compounds of Group 14 Elements

Identify the correct statements from the following:

a) Silicones are hydrophobic in nature.

b) The repeating unit in silicones is

Question Image

c) In a $C_{60}$ molecule, twenty $C_{6}$ rings and twelve $C_{5}$ rings are present.

d) Dehydration of formic acid by concentrated $H_{2} {SO}_{4}$ at $100^{o} C$ gives ${CO}_{2}$ .

e) The distance between two layers in graphite is $34 pm$ .

EASY

Chemistry>Inorganic Chemistry>The p-Block Elements>Other Important Compounds of Group 14 Elements

{SiO}_{2}

is attacked by which one/ones of the following?

EASY

Chemistry>Inorganic Chemistry>The p-Block Elements>Other Important Compounds of Group 14 Elements

Dry ice is

EASY

Chemistry>Inorganic Chemistry>The p-Block Elements>Other Important Compounds of Group 14 Elements

{({CH}_{3})}_{3} SiCl

is used during polymerization of organosilicons because

EASY

Chemistry>Inorganic Chemistry>The p-Block Elements>Other Important Compounds of Group 14 Elements

Among the following substituted silanes, the one which will give rise to cross-linked silicone polymer on hydrolysis is:

MEDIUM

Chemistry>Inorganic Chemistry>The p-Block Elements>Other Important Compounds of Group 14 Elements

Example of a three-dimensional silicate is :

EASY

Chemistry>Inorganic Chemistry>The p-Block Elements>Other Important Compounds of Group 14 Elements

What is the chief constituent of pyrex glass?

Silicon tetrachloride is prepared by of various silicon compounds such as ferrosilicon, silicon carbide, or mixtures of silicon dioxide and carbon.

Important Questions on The p-Block Elements

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