Chemistry - Non Metals and Their Compounds
Exam Duration: 60 Mins Total Questions : 30
Helium is perferred to hydrogen in air ballons because it
- (a)
is cheaper
- (b)
is less dense
- (c)
has greater lifing power
- (d)
does not form an explosive mixture with air
Sugar of lead is
- (a)
PbCl2
- (b)
PbSO4
- (c)
Pb(CH3COO)2
- (d)
PbCO3
Yellow Coloyr of usual nitric acid is due to the presence one of the following?
- (a)
N2O
- (b)
NO
- (c)
N2O5
- (d)
NO2
Lead is soluble in
- (a)
CH3COOH
- (b)
H2SO4
- (c)
Hcl
- (d)
HNO3
Assertion (A) SO2 is a bleaching agent.
Reason (R) Nascent oxygen causes bleaching.
- (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
Match Column I with Column II.
| Column I | Column II |
| A.Hydrogen was discovered by | 1.Priestly |
| B.The name hydrogen was proposed by | 2.Bernard |
| C.Hydrogen peroxide was discovered by | 3.Lavosier |
| D.Oxygen was discovered by | 4.Cavendish |
- (a)
A B C D 4 3 2 1 - (b)
A B C D 3 2 1 4 - (c)
A B C D 2 1 4 3 - (d)
A B C D 1 4 3 2
Which one of the following formed from sea water?
- (a)
Halogen
- (b)
Chlorine
- (c)
Oxygen
- (d)
Sulphur
The radioactive noble gas is
- (a)
He
- (b)
Xe
- (c)
Rn
- (d)
Ne
Consider the following statements
1.Bornic acid is mild antiseptic and is used as a food perservative.
2.Borax and other borates are used in water-treatment, timber preservation, glass manufacture.
3.Sodium peroxoborate is an important constituent of washing powder.
Select the correct statements.
- (a)
1,2
- (b)
2,3
- (c)
1,3
- (d)
1,2,3
Carbogen is
- (a)
mixture of CO + CO2
- (b)
mixture of O2 + CO2
- (c)
pure form of carbon
- (d)
unsaturated organic compound
Which one of the following is not an allotrope of carbon?
- (a)
Soot
- (b)
Graphite
- (c)
Diamond
- (d)
Carborundum
Glass is best described as a
- (a)
Solid
- (b)
Liquid
- (c)
Supercooled liquid
- (d)
Colloidal sol
The colour of blue glass is due to the presence of oxide of
- (a)
chromium
- (b)
cobalt
- (c)
gold
- (d)
silver
Which one of the following is a mixed fertilizers?
- (a)
Urea
- (b)
CAN
- (c)
Ammonium sulphate
- (d)
NPK
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
Pure water can be obtained from sea water by
- (a)
centrifugation
- (b)
plasmolysis
- (c)
reverse osmosis
- (d)
sedimentation
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
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
Diamond is a
- (a)
good conductor and soft
- (b)
non-conductor and soft
- (c)
non-conductor and hard
- (d)
good conductor and hard
Synthetic gas is a mixture of
- (a)
steam and carbon monoxide.
- (b)
carbon monoxide and nitrogen
- (c)
hydrogen and methane
- (d)
hydrogen and carbon monoxide
Graphite is used in atomic piles
- (a)
as a lubricant
- (b)
as a fuel
- (c)
as a insulator
- (d)
as a moderator
When CO2 is passed through an aqueous solution of bleaching powder, the gas evolved is
- (a)
chlorine
- (b)
oxygen
- (c)
ozone
- (d)
chlorine dioxide
Activated charcol is employed to remove colouring matter from pure substance, it works by
- (a)
bleaching
- (b)
oxidation
- (c)
reduction
- (d)
absorption
Which one of the following is produced during the formation of photochemical smog?
- (a)
Hydrocarbons
- (b)
Nitrogen Oxide
- (c)
Ozone
- (d)
Metane
Consider the following statements.
1.Chlorine is manufactured by Deacon's process.
2.Bromine is obtained on a commercial scale from carnallite.
3.Chlorine acts as bleaching agent only in the presence of moisture.
Which of the above are false?
- (a)
1 and 2
- (b)
2 and 3
- (c)
1 and 3
- (d)
None of these
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
What is the oxygen in solid state?
- (a)
Pale yellow
- (b)
Pale blue
- (c)
Light green
- (d)
Greenish yellow
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
Match Column I with Column II
| Column I | Column II |
| A.Oil of Vitriol | 1.H2SO5 |
| B.Caro's acid | 2.H2SO4 |
| C.Bleaching power | 3.Ca(H2PO4)2 |
| D.Superphosphate of lime | 4.CaOCl2 |
- (a)
A B C D 1 4 3 2 - (b)
A B C D 2 1 4 3 - (c)
A B C D 4 3 2 1 - (d)
A B C D 3 2 1 4
