X Chem Cdf Mock test 1

The Latin word of carbon is carbo which means

• Coal

• Charcoal

• Lampblack

• Carbon black

In elementary state carbon exists as

• Diamond

• Graphite

• Fullerene

• All the above

The radioactive isotope of carbon is

• C-12

• C-13

• C-14

• Both 1&2

C- 14 radio active isotope contains

• 6 Protons, 6 Electrons, 8 Neutrons

• 6 Protons, 6 Electrons, 6 Neutrons

• 6 protons, 7 electrons, 8 Neutrons

• All the above

The group number and period number of carbon in periodic table is?

• 14 th group or IV A group, and 2 nd period

• 14 th group and 3 rd period

• IV A group and 5 th period

• Both 1&2

The electronic configuration of Carbon

• 1s2 2s2 2 p2

• 1 s^2 2 s^2 2p^2

• 1s2 2 p4

• 1s2 2s 2 2p3

The ability of element to link with atoms of same element is called as

• catenation

• Allotropy

• Homologous series

• Isomerism

The various physical forms of one element in which an element exists called as

• Allotropes

• Allotropy

• Isomerism

• Both 1& 2

In diamond carbon exist in which hybridization

• sp

• sp2

• sp3

• sp3 d

In graphite carbon exists in which hybridization?

• sp

• sp2

• sp3

• sp3 d