TNPSC Chemistry - Non Metals and Their Compounds
Exam Duration: 45 Mins Total Questions : 30
Consider the following statements
1.Nitrogen combines with metal to form nitride.
2.NO is formed on lightning.
3.HNO3 cannot be used as nitrogen fertilizer.
Which of the statement(s) given above statements is/are correct?
- (a)
Only 1
- (b)
2 and 3
- (c)
1 and 3
- (d)
All of these
Sugar of lead is
- (a)
PbCl2
- (b)
PbSO4
- (c)
Pb(CH3COO)2
- (d)
PbCO3
Which one of the following noble gases is not found in the atmosphere?
- (a)
Argon
- (b)
Krypton
- (c)
Radon
- (d)
Xenon
Calgon (Sodium metaphosphate) finds application as
- (a)
artificial jewel
- (b)
paint
- (c)
a resin
- (d)
washing powder
Lead is soluble in
- (a)
CH3COOH
- (b)
H2SO4
- (c)
Hcl
- (d)
HNO3
Consider the following statements
1.Nitric acid is used in the production of fertilizers.
2.Sulphuric acid is used in the production of explosives.
Which of the statement(s) given above is/are correct?
- (a)
Only 1
- (b)
Only 2
- (c)
Both 1 and 2
- (d)
Neither 1 nor 2
Match Column I with Column II.
Column I | Column II |
A.Hydrofluoric acid | 1.Etching of glass |
B.I2 dissolved in alchol | 2.Antiseptic |
C.Chlorine | 3.Disinfectant |
D.Polyvinyl chloride | 4.Plastic |
- (a)
A B C D 1 2 3 4 - (b)
A B C D 2 3 4 1 - (c)
A B C D 3 4 1 2 - (d)
A B C D 4 1 2 3
Carbon monoxide is a poisonous gas the antidote used for this poisonous is
- (a)
pure oxigen
- (b)
carbonic acid
- (c)
carboundum
- (d)
carbogen
Which one of the following is not an allotrope of carbon?
- (a)
Soot
- (b)
Graphite
- (c)
Diamond
- (d)
Carborundum
Assertion (A) On a commercial scale boric acid is prepared from colemanite.
Reason (R) It is used in the manufacture of enamels and glazes for pottery as disinfectant in medicine.
- (a)
Both A and R are true and R is the correct explanation of A
- (b)
Both A and R are true, but R is not the correct explanation of A
- (c)
A is true but, R is false
- (d)
A is false but, R is true
Which gas is used in aerated water?
- (a)
CO2
- (b)
SO2
- (c)
CO
- (d)
Water Vapours
Glass is best described as a
- (a)
Solid
- (b)
Liquid
- (c)
Supercooled liquid
- (d)
Colloidal sol
Consider the following statements
1.Euchlorine is a mixture of Cl2 and Cl2.
2.Bromine gas turns strach iodine paper red.
3.Photographic plates are coated with a film of AgBr.
Which of the above is/are true?
- (a)
Only 1
- (b)
1 and 2
- (c)
1 and 3
- (d)
1,2 and 3
Water gas is produced by
- (a)
Passing steam over red hot coke.
- (b)
Passing steam and air over red hot coke.
- (c)
burning coke in excess of air.
- (d)
burning coke in limited supply of air.
Fuel used for rocket propulsion is a mixture of
- (a)
hydrazine and hydrogen peroxide
- (b)
hydrazine and TNT
- (c)
hydrazine amine and TNT
- (d)
hydrazine amine and hydrogen peroxide
Consider the following statements
1.White phosphours has garlic like smell.
2.White phosphours kept in the light it turns yellow and thus it is called as yellow phosphours.
3.White phosphours produces yellowish green light when kept inside the dark and this phenomenon is called phosphorescence.
Which of the statements given above are correct?
- (a)
1 and 2
- (b)
2 and 3
- (c)
1 and 3
- (d)
1,2 and 3
Fe3O4 is called
- (a)
haematite
- (b)
magnetite
- (c)
casserite
- (d)
dolomite
Asserton (A) Carbon can from more compounds than any other elements.
Reason (R) Carbon can exist in various allotropes.
- (a)
Both A and R are true and R is the correct explanation of A
- (b)
Both A and R are true, but R is not the correct explanation of A
- (c)
A is true, but R is false
- (d)
A is false, but R is true
Assertion (A) To dilute sulphuric acid, acid is added to water and not water to acid.
Reason (R) Specific heat of water is quite large.
- (a)
Both A and R are true and R is the correct explanation of A
- (b)
Both A and R are true, but R not is the correct explanation of A
- (c)
A is true, but R is false
- (d)
A is false, but R is true
Water softner is
- (a)
borax
- (b)
zeolite
- (c)
Both (a) and (b)
- (d)
None of these
Assertion (A) Phosgene is a poisonous compound forms from chloroform in the pressence of UV-rays and O2.
Reason (R) It is used for the synthesis of precursor for the poly urethane polymer.
- (a)
Both A and R are true and R is the correct expalnation of A.
- (b)
Both A and R are true, but R is not the correct expalnation of A.
- (c)
A is true, but R is false.
- (d)
A is false , but R is true.
Activated charcol is employed to remove colouring matter from pure substance, it works by
- (a)
bleaching
- (b)
oxidation
- (c)
reduction
- (d)
absorption
Match Column I with Column II.
Column I | Column II |
A.Tear gas | 1.Cl3NO3 |
B.Litharge | 2.PbO |
C.Read lead | 3.Pb3O4 |
D.Carborundum | 4.Sic |
- (a)
A B C D 4 1 2 3 - (b)
A B C D 3 4 1 2 - (c)
A B C D 2 3 4 1 - (d)
A B C D 1 2 3 4
Asserton (A) Diamond is a good conductor of electricity.
Reason (R) Diamond and graphite are two allotrpe of carbon and graphite is a good conductor of electricity.
- (a)
Both A and R are true and R is the correct expalnation of A.
- (b)
Both A and R are true,but R is not the correct expalnation of A.
- (c)
A is true but, R is false.
- (d)
A is false but, R is true.
The element which liberated 02 from water is
- (a)
P
- (b)
N
- (c)
F
- (d)
I
Following statements are made in connection with carbon dioxide(CO2).
1.CO2 is a poisonous gas.
2.CO2 is an acidic oxide.
3.CO2 turns lime water milky.Which of the statements given above is /are correct?
- (a)
1 and 2
- (b)
2 and 3
- (c)
3 Only
- (d)
1 and 3
Which one among the following statements is not correct about graphite?
- (a)
It is the most stable allotrope of carbon
- (b)
It is an electrically conducting material.
- (c)
Crystalline spherical beads of graphite have very good lubricating property under dry conditions
- (d)
It is the higher grade of coal
Which one of the following is used for writing on glass?
- (a)
Silicon
- (b)
Graphite
- (c)
Hydrogen fluoride
- (d)
Hydrogen iodide
Consider the following statements
1.The non-metals are either solids or gases except bromine which is a liquid.
2.lodine is a non - metal but it is lustrous.
3.Diamond, an allotrope of carbon, is the hardest natural substance.
Which of the statements given above are correct?
- (a)
1 and 2
- (b)
1 and 3
- (c)
1,2 and 3
- (d)
None of these
Which among the following is an element?
- (a)
Alumina
- (b)
Brass
- (c)
Graphite
- (d)
Silica