ABHYAS | Self Learning | Testing Platform

Q.1

Which fullerene is referred as Buckyball ?

A.

C 60

B.

C 76

C.

C 80

D.

C 56

Reset Mark for Review Next 00:00

Q.2

Fullerene was first prepared by _______________________

A.

Evaporation of graphite

B.

Condensation of Graphite

C.

Fullerene Ore

D.

All of the above

Previous Reset Mark for Review Next 00:00

Q.3

In diamond, each C - atom is joined to __________ carbon atoms.

A.

Two

B.

Four

C.

One

D.

Three

Previous Reset Mark for Review Next 00:00

Q.4

Two or more different form of an element in the different physical States are called __________.

A.

Isomers

B.

Isotopes

C.

Allotropes

D.

Isobars

Previous Reset Mark for Review Next 00:00

Q.5

Carbohydrates, fats, proteins, hydrocarbons are the example of ________________

A.

Organic compounds

B.

Inorganic compounds

C.

Ionic compounds

D.

None of the above

Previous Reset Mark for Review Next 00:00

Q.6

A red hot black solid which reacts with $large CO_2$ to form CO :

A.

Ca

B.

K

C.

C

D.

Al

Previous Reset Mark for Review Next 00:00

Q.7

How many unshared pairs of electrons are present in an oxygen atom that forms an oxygen molecile?

A.

1

B.

2

C.

3

D.

4

Previous Reset Mark for Review Next 00:00

Q.8

An Alkane has a molecular mass of 72. What is the Molecular formula ?

A.

$large CH_{3} - CH_2 - C - C- CH_3$

B.

$large CH_3 - CH_2 - CH_2- CH - CH_3$

C.

$large CH_3 - CH_2 - HC = C - CH_3$

D.

$large CH_3 - CH_2 - CH_2 - CH_2 - CH_3$

Previous Reset Mark for Review Next 00:00

Q.9

_______________ single bonds are present in a molecule of propane.

A.

10

B.

8

C.

6

D.

4

Previous Reset Mark for Review Next 00:00

Q.10

Diamond shines due to its:

A.

High density

B.

High refractive index

C.

High melting point

D.

None of these

Previous Reset Mark for Review 00:00

Attention !!!!!