Assertion (A) : To dilute sulphuric acid, acid is added to water and not water to acidReason (R) : Specific heat of water is quite large Codes

Both A and R are true but R is the correct explanation of A

Both A and R are true and R is the correct explanation A

Both A and R are true but R is the correct explanation of A

Biogas and producer gas are made of

Producer gas contains CO but not CO

Both biogas and producer gas have N

Alum is water purifier because it

Destroys the pathogenic bacteria

The mixture of noble gases is separated by

Ramsay-Rayleigh's second method

Dewar's coconut charcoal adsorption method

259 + Mcqs in Non Metals and Their Compounds in Chemistry Page 2 McqOptions

51.	H₂S₂O₈ is called
A.	Persulphuric acid
B.	Pyrosulphurus acid
C.	Pyrosulphuric acid
D.	Dithionic acid
Answer» B. Pyrosulphurus acid

Discussion

52.	Sulphur molecule is
A.	S
B.	S
C.	S
D.	S
Answer» E.

Discussion

53.	Which of the fuel gases has composition by volume 34% CH₄ + 48% H₂ + 15% O₂ + 3% CO
A.	Oil gas
B.	Petrol gas
C.	Coal gas
D.	Water gas
Answer» D. Water gas

Discussion

54.	Leas dioxide is formed by
A.	PbO + KCIO
B.	PbO
C.	+ NaOH
D.	PbO + O
E.	Pb + O
Answer» B. PbO

Discussion

55.	The acid employed for etching of glass is
A.	H
B.	SO
C.	HCIO
D.	HF
E.	Aqua-regia
Answer» D. HF

Discussion

56.	Which of the following oxide is neutral ?
A.	CO
B.	SiO
C.	ZnO
D.	P
E.	O
Answer» B. SiO

Discussion

57.	The reducing agent in thermite process is
A.	Mg
B.	BaO
C.	Al
D.	MnO
Answer» D. MnO

Discussion

58.	Which of the following is an acid ?
A.	B(OH)
B.	AI(OH)
C.	TI(OH)
D.	In(OH)
Answer» B. AI(OH)

Discussion

59.	Mo is used as catalyst in the manufacture of
A.	HCI
B.	NH
C.	HNO
D.	HNO
Answer» C. HNO

Discussion

60.	SO₂ + CI ₂^sunlight Product. The product is
A.	Chloroform
B.	Sulphuryl chloride
C.	Sulphuric acid
D.	None of these
Answer» C. Sulphuric acid

Discussion

61.	The molarity of pure water at 4C is
A.	2.5 M
B.	5 M
C.	1 M
D.	55.5 M
Answer» E.

Discussion

62.	The oxyacid of halogen has maximum acidic nature
A.	HCIO
B.	HCIO
C.	HCIO
D.	HCIO
Answer» E.

Discussion

63.	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 Codes
A.	Both A and R are true and R is the correct explanation A
B.	Both A and R are true but R is the correct explanation of A
C.	A is true but R is false
D.	A is false but R is true
Answer» B. Both A and R are true but R is the correct explanation of A

Discussion

64.	Stannous fluoride is formede by
A.	Sn + HF
B.	SnO
C.	+ HF
D.	Sn + F
E.	SnO + HF
Answer» E. SnO + HF

Discussion

65.	Consider the following statements. Hard water is not suitable for 1. Drinking 2. Washing clothes with soap 3. Use in boilers 4. Irrigating crops Which of these statements are correct ?
A.	1 and 3
B.	2 and 3
C.	1, 2 and 4
D.	1, 2, 3 and 4
Answer» C. 1, 2 and 4

Discussion

66.	In the reaction N₂ + 3H₂ - 2NH₃ the catalyst used as
A.	Pt and Cu
B.	Fe and Mo
C.	NO an Pt
D.	Ni and Ti
Answer» C. NO an Pt

Discussion

67.	Which one of the following is solid at room temperature ?
A.	CI
B.	F
C.	I
D.	Br
Answer» D. Br

Discussion

68.	Biogas and producer gas are made of
A.	Producer gas contains CO but not CO
B.	Biogas contains CO
C.	but producer gas does not
D.	Both biogas and producer gas have N
E.	All of them
Answer» E. All of them

Discussion

69.	The formula of white phosphorus is
A.	P
B.	P
C.	P
D.	P
Answer» B. P

Discussion

70.	H₃PO₃ is
A.	A tribasic
B.	A dibasic
C.	A monobasic
D.	Neutral
Answer» C. A monobasic

Discussion

71.	Nitrogen combines with metal to form
A.	Nitride
B.	Nitrite
C.	Nitrate
D.	Nitrosyl chloride
Answer» B. Nitrite

Discussion

72.	Animals die in nitrogen atmosphere because
A.	it is poisonous
B.	it is heavier than air
C.	they want oxygen
D.	it destroys haemoglobin
Answer» D. it destroys haemoglobin

Discussion

73.	Oxygen was discovered by
A.	Priestley
B.	Boyle
C.	Scheele
D.	Cavendish
Answer» B. Boyle

Discussion

74.	The most reactive among the halogen is
A.	Fluorine
B.	Chlorine
C.	Bromine
D.	Iodine
Answer» B. Chlorine

Discussion

75.	Which gas is used in filling electric bulbs ?
A.	Neon
B.	Argon
C.	Radon
D.	Krypton
Answer» C. Radon

Discussion

76.	Which noble gas was discovered in chromosphere of the sun ?
A.	Helium
B.	Neon
C.	Xenon
D.	Radon
Answer» B. Neon

Discussion

77.	Which of the following noble gases is least polarisable ?
A.	He
B.	Ar
C.	Nr
D.	Xe
Answer» B. Ar

Discussion

78.	Ozone molecule is
A.	Linear
B.	Paramagnetic
C.	Diamagnetic
D.	Tetrahedral
Answer» D. Tetrahedral

Discussion

79.	Alum is water purifier because it
A.	Gives taste
B.	Softens hard water
C.	Coagulates the impurities
D.	Destroys the pathogenic bacteria
Answer» E.

Discussion

80.	The element which shows least metallic character is
A.	Indium
B.	Aluminium
C.	Boron
D.	Gallium
Answer» D. Gallium

Discussion

81.	The characteristics odour of garlic is due to
A.	A chloro compound
B.	A sulphur compound
C.	A fluorine compound
D.	Acetic acid
Answer» C. A fluorine compound

Discussion

82.	Which is the best fertilizer ?
A.	Phosphatic slag
B.	Triple phosphate
C.	Super phosphate
D.	None of these
Answer» C. Super phosphate

Discussion

83.	Which of the following is not chalcogen ?
A.	O
B.	Na
C.	S
D.	Se
Answer» C. S

Discussion

84.	When CO
A.	Chlorine
B.	Oxygen
C.	Ozone
D.	Chlorine dioxide
Answer» B. Oxygen

Discussion

85.	The mixture of white and red phosphorus can be separated by using -
A.	Kerosene
B.	Iodine
C.	NaOH
D.	HNO
E.	<sub>3</sub>
Answer» D. HNO

Discussion

86.	Which one of the following is associated with the formation of brown air in traffic congested cities
A.	Sulphur dioxide
B.	Nitrogen oxide
C.	Carbon dioxide
D.	Carbon monoxide
Answer» B. Nitrogen oxide

Discussion

87.	Which one of the following is produced during the formation of photochemical smog ?
A.	Hydrocarbons
B.	Nitrogen oxide
C.	Ozone
D.	Methane
Answer» C. Ozone

Discussion

88.	The number of unpaired electrons is O
A.	0
B.	1
C.	2
D.	None of these
Answer» C. 2

Discussion

89.	Which one of the following is used for writing on glass ?
A.	Silicon
B.	Graphite
C.	Hydrogen fluoride
D.	Hydrogen iodide
Answer» D. Hydrogen iodide

Discussion

90.	Which of the following is not a source of sulphur ?
A.	Carnalite
B.	Galena
C.	Gypsum
D.	Cinnabar
Answer» B. Galena

Discussion

91.	Which one of the following is not an essential micronutrient for plants ?
A.	Boron
B.	Zinc
C.	Sodium
D.	Copper
Answer» D. Copper

Discussion

92.	The gas obtained by radioactive disintegration of radium (226) is
A.	Argon
B.	Neon
C.	Radon
D.	Krypton
Answer» D. Krypton

Discussion

93.	The mixture of noble gases is separated by
A.	Ramsay-Rayleigh's first method
B.	Ramsay-Rayleigh's second method
C.	Fisher and Ringe's method
D.	Dewar's coconut charcoal adsorption method
Answer» E.

Discussion

94.	Radon is a
A.	Drug
B.	Noble gas
C.	Trade name of nylon
D.	Explosive
Answer» C. Trade name of nylon

Discussion

95.	Mark the halogen that does not give disproportionation reaction with alkalies
A.	Iodine
B.	Chlorine
C.	Fluorine
D.	Bromine
Answer» D. Bromine

Discussion

96.	Which one is a good conductor of electricity ?
A.	Red phosphorus
B.	Black phosphorus
C.	Violet phosphorus
D.	Scarlet phosphorus
Answer» C. Violet phosphorus

Discussion

97.	The gas is commonly used in anaesthesia
A.	Methane
B.	Nitrous oxide
C.	Nitrogen
D.	Hydrogen peroxide
Answer» C. Nitrogen

Discussion

98.	The credit of discovery of hydrogen peroxide goes to
A.	Cavandish
B.	Bernard
C.	Cay-Lussac
D.	Thenard
Answer» C. Cay-Lussac

Discussion

99.	Decomposition od H
A.	MnO
B.	Acetanilide
C.	Traces of acid
D.	All of them
Answer» B. Acetanilide

Discussion

100.	Heavy water is used as
A.	Washing water
B.	Detergent
C.	Drinking water
D.	Moderator
Answer» E.

Discussion

Explore topic-wise MCQs in Chemistry.

H2S2O8 is called

Sulphur molecule is

Which of the fuel gases has composition by volume 34% CH4 + 48% H2 + 15% O2 + 3% CO

Leas dioxide is formed by

The acid employed for etching of glass is

Which of the following oxide is neutral ?

The reducing agent in thermite process is

Which of the following is an acid ?

Mo is used as catalyst in the manufacture of

SO2 + CI 2sunlight Product. The product is

The molarity of pure water at 4 C is

The oxyacid of halogen has maximum acidic nature

Assertion (A) : To dilute sulphuric acid, acid is added to water and not water to acidReason (R) : Specific heat of water is quite large Codes

Stannous fluoride is formede by

Consider the following statements. Hard water is not suitable for1. Drinking2. Washing clothes with soap3. Use in boilers4. Irrigating cropsWhich of these statements are correct ?

In the reaction N2 + 3H2 - 2NH3 the catalyst used as

Which one of the following is solid at room temperature ?

Biogas and producer gas are made of

The formula of white phosphorus is

H3PO3 is

Nitrogen combines with metal to form

Animals die in nitrogen atmosphere because

Oxygen was discovered by

The most reactive among the halogen is

Which gas is used in filling electric bulbs ?

Which noble gas was discovered in chromosphere of the sun ?

Which of the following noble gases is least polarisable ?

Ozone molecule is

Alum is water purifier because it

The element which shows least metallic character is

The characteristics odour of garlic is due to

Which is the best fertilizer ?

Which of the following is not chalcogen ?

When CO

The mixture of white and red phosphorus can be separated by using -

Which one of the following is associated with the formation of brown air in traffic congested cities

Which one of the following is produced during the formation of photochemical smog ?

The number of unpaired electrons is O

Which one of the following is used for writing on glass ?

Which of the following is not a source of sulphur ?

Which one of the following is not an essential micronutrient for plants ?

The gas obtained by radioactive disintegration of radium (226) is

The mixture of noble gases is separated by

Radon is a

Mark the halogen that does not give disproportionation reaction with alkalies

Which one is a good conductor of electricity ?

The gas is commonly used in anaesthesia

The credit of discovery of hydrogen peroxide goes to

Decomposition od H

Heavy water is used as

H₂S₂O₈ is called

Which of the fuel gases has composition by volume 34% CH₄ + 48% H₂ + 15% O₂ + 3% CO

SO₂ + CI ₂^sunlight Product. The product is

The molarity of pure water at 4C is

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
Codes

Consider the following statements. Hard water is not suitable for
1. Drinking
2. Washing clothes with soap
3. Use in boilers
4. Irrigating crops
Which of these statements are correct ?

In the reaction N₂ + 3H₂ - 2NH₃ the catalyst used as

H₃PO₃ is