Buy Non-metal and its Compounds Discussion

Buy Non-metal and its Compounds Discussion
Buy Non-metal and its Compounds Discussion
1. Water softner is
(a) borax (b) zeolite
(c) Both (a) and (b) (d) None of these
2. Which one of the following is used for
writing on glass? [CDS 2008]
(a) Silicon
(b) Graphite
(c) Hydrogen fluoride
(d) Hydrogen iodide
3. Which of the following statement(s)
is/are correct? [SSC (10 2) 2018]
(a) Oxides of non-metals are basic.
(b) Oxides of non-metals are acidic.
(c) Oxides of metals are acidic.
(d) All option are correct.
4. Consider the following statements
I. The non-metals are either solids or
gases except bromine which is a liquid.
II. Iodine is a non-metal but it is lustrous.
III. Diamond, an allotrope of carbon, is
the hardest natural substance.
Which of the statements given above
are correct?
(a) I and II (b) I and III
(c) I, II and III (d) None of these
5. Match List I with List II
List I List II
A. Hydrogen was
discovered by
1. Priestley
B. The name hydrogen
was proposed by
2. Bernard
C. Hydrogen peroxide
was discovered by
3. Lavosier
D. Oxygen was
discovered by
4. Cavendish
Codes
A B C D A B C D
(a) 4 3 2 1 (b) 3 2 1 4
(c) 2 1 4 3 (d) 1 4 3 2
6. Which one of the following elements
forms the maximum number of
compounds? [UPPSC (Mains) 2016]
(a) Hydrogen (b) Carbon
(c) Nitrogen (d) Oxygen
Buy Non-metal and its Compounds Discussion
7. Buckminster fullerene is an allotrope of
[SSC CGL 2018]
(a) Boron (b) Iron
(c) Phosphorus (d) Carbon
8. Which one of the following is not an
allotrope of carbon? [NDA 2007]
(a) Soot b) Graphite
(c) Diamond (d) Carborundum
9. Diamond is a
(a) good conductor and soft
(b) non-conductor and soft
(c) non-conductor and hard
(d) good conductor and hard
10. Which one of the following is not true
for diamond? [CDS 2015]
(a) Each carbon atom is linked to four
other carbon atoms.
(b) Three-dimensional network,structure
of carbon atoms is formed.
(c) It is used as an abrasive for
sharpening hard tools.
(d) It can be used as a lubricant.
11. Which among the following is an
element? [NDA 2009]
(a) Alumina (b) Brass
(c) Graphite (d) Silica
12. Which of the following is also used as a
lubricant? [MPPSC (Pre) 2017]
(a) Cuprite (b) Graphite
(c) Haematite (d) Cryolite
13. Graphite is used in atomic piles
(a) as a lubricant. (b) as a fuel.
(c) as an insulator. (d) as a moderator.
14. Which of the following statements is not
true ? [NDA 2020]
(a) Buckminster fullerene is an
allotropic of carbon.
(b) Diamond is a good conductor of
electricity.
(c) Graphite is a good conductor of
electricity.
(d) Each carbon atom in Graphite
attached to other three carbon atoms.
15. Graphene is [UPPSC (Pre) 2018]
(a) An alloy of carbon
(b) Nano structure of carbon
(c) Isotope of carbon
(d) None of the above
16. Which one of the following is the purest
form of Carbon? [NDA 2018]
(a) Charcoal
(b) Coke
(c) Fullerene
(d) Carbon black
17. How is carbon black obtained?
[NDA 2018]
(a) By heating wood at high temperature
in absence of air.
(b) By heating coal at high temperature
in absence of air.
(c) By burning hydrocarbons in a limited
supply of air.
Buy Non-metal and its Compounds Discussion
(d) By heating coal at high temperature
in presence of air.
18. Incomplete combustion of a fuel gives
poisonous ……… gas. [SSC 2018]
(a) carbon dioxide (b) isocynate
(c) carbon monoxide (d) nitrogen
19. What is the bond order of CO group?
[BPSC (Pre) 2019]
(a) 1 (b) 2.5
(c) 3.5 (d) 3
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