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SET-1
SET-2
SET-3
SET-4
SET-5
SET-6
SET-7
SET-8
SET-9
1.
Which of the following elements has the lowest melting point?
A.
Antimony
B.
Krypton
C.
Platinum
D.
Sodium
Answer :
Answer & Solution
2.
Which of the following gases is known as ‘Laughing Gas’?
A.
Nitrogen Peroxide
B.
Nitrous oxide
C.
Nitrogen
D.
Nitric oxide
Answer :
Answer & Solution
3.
Barium loses ____ electrons to achieve noble gas electron configuration.
A.
1
B.
2
C.
3
D.
4
Answer :
Answer & Solution
4.
The common name of sulphur is
A.
Galena
B.
Brimstone
C.
Lime
D.
Freon
Answer :
Answer & Solution
5.
Which of the following elements has the lowest me
A.
Bromine
B.
Calcium
C.
Lear
D.
Zinc
Answer :
Answer & Solution
6.
Which of the following statement is false?
A.
Xenon is the most reactive among the rare gases
B.
The most abundant rare gas found in the atmosphere is radon
C.
Radon is obtained from the decay of radium
D.
Helium is an inert gas
Answer :
Answer & Solution
7.
The common name of sodium tetraborate decahydrate is ____
A.
Gypsum
B.
Epsom salt
C.
Borax
D.
Galena
Answer :
Answer & Solution
8.
The Chemical formula of Aluminium Chloride is ____
A.
AlCl3
B.
Al2Cl3
C.
AlCl
D.
AlCl2
Answer :
Answer & Solution
9.
Heavy water is
A.
Deuterium oxide
B.
Trislum oxide
C.
Monoterium oxide
D.
Polyterium oxide
Answer :
Answer & Solution
10.
The chemical formula of Cadmium nitrate is _____
A.
Cd2(NO4C)2
B.
Cd2NO3
C.
Cd(NO3)2
D.
CdNO3
Answer :
Answer & Solution
11.
The Chemical formula of ammonium dichromate is ____
A.
(NH4)Cr2O3
B.
(NH4)2 Cr2O3
C.
(NH4)2Cr2O7
D.
(NH4)CrO3
Answer :
Answer & Solution
12.
The Chemical formula of Ammonioum Oxalate is ___
A.
(NHD)2C2O4
B.
(NHD)2C2O3
C.
(NH4)2C2O4
D.
(NHD)2CO2
Answer :
Answer & Solution
13.
Solid carbon dioxide is known as ___
A.
Alum
B.
Dry ice
C.
Hypo
D.
Borax
Answer :
Answer & Solution
14.
The common name of Hydrogen peroxide is
A.
Gypsum
B.
Baking Soda
C.
Borax
D.
Bleach (liquid)
Answer :
Answer & Solution
15.
Which gas among the following used as an anaesthetic?
A.
Nitrous oxide
B.
Nitrogen
C.
Methane
D.
Carbon dioxide
Answer :
Answer & Solution
16.
Chemical formula of water is
A.
NaOH
B.
H2O
C.
O2
D.
N2O
Answer :
Answer & Solution
17.
Who discovered Oxygen?
A.
Williams
B.
Heisenberg
C.
Carl Scheele
D.
Hooke
Answer :
Answer & Solution
18.
Which of the following elements has the lowest melting point?
A.
Radon
B.
Radium
C.
Sodium
D.
Tin
Answer :
Answer & Solution
19.
Which of the following elements has the lowest melting point?
A.
Argon
B.
Tungsten
C.
Titanium
D.
Nickel
Answer :
Answer & Solution
20.
The Chemical formula of Ammonium sulphat is
A.
NH4SO3
B.
(NH4)2SO4
C.
NH4SO4
D.
(NH4)2SO3
Answer :
Answer & Solution
21.
In arc welding Argon is used because of its
A.
High flammability
B.
High calorific value
C.
Low reactivity with metal
D.
Ability to lower the melting point of the metal
Answer :
Answer & Solution
22.
Inert gases are
A.
Chemically very active
B.
Chemically unreactive
C.
Miscible with water
D.
Not stable
Answer :
Answer & Solution
23.
Which of the following fuels causes minimum environmental pollution?
A.
Hydrogen
B.
Kerosene
C.
Diesel
D.
Coal
Answer :
Answer & Solution
24.
Which of the following is the most important raw material for generation of power in India?
A.
Mineral oil
B.
Uranium
C.
Coal
D.
Natural Gas
Answer :
Answer & Solution
25.
The purest form of water in nature is
A.
Sea water
B.
River water
C.
Rain water
D.
Lake water
Answer :
Answer & Solution
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