16. Non-Metals and Their Compounds

Q- Which of the following oxides is amphoteric in nature?
(a) CO2 (b) SiO2
(c) SnO2 (d) CaO
Ans: (c)

Q- Animals die in nitrogen atmosphere because
(a) it is poisonous
(b) it is heavier than air
(c) they want oxygen
(d) it destroys haemoglobin
Ans: (c)

Q- Nitrogen combines with metal to form
(a) Nitride
(b) Nitrite
(c) Nitrate
(d) Nitrosyl chloride
Ans: (a)

Q- Mixture used for the tips of match stick is
(a) S + K
(b) Sb2S3
(c) K2Cr2O7 + S + White P
(d) K2Cr2O7 + K + S
Ans: (c)

Q- Super phosphate of lime contains
(a) Ca3(PO4)2
(b) CaHPO4
(c) H3PO4 + Ca3(PO4)2
(d) Ca(H2PO4)2
Ans: (d)

Q- Which of the following is formed by strong heating of potassium permanganate?
(a) O2
(b) Mn
(c) H2
(d) None of the above
Ans: (a)

Q- Which one of the following is used for writing on glass?
(a) Silicon
(b) Graphite
(c) Hydrogen fluoride
(d) Hydrogen iodide
Ans: (c)

Q- Which one of the following is not an essential micronutrient for plants?
(a) Boron (b) Zinc
(c) Sodium (d) Copper
Ans: (c)

Q- Which of the following is not a source of sulphur?
(a) Carnalite (b) Galena
(c) Gypsum (d) Cinnabar
Ans: (a)

Q- Which one of the following is produced during the formation of photochemical smog?
(a) Hydrocarbons
(b) Nitrogen oxide
(c) Ozone
(d) Methane
Ans: (b)

Q- 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
Ans: (a)

Q- The gas obtained by radioactive disintegration of radium (226) is
(a) Argon (b) Neon
(c) Radon (d) Krypton
Ans: (c)

Q- The number of unpaired electrons is O2 molecule is
(a) 0
(b) 1
(c) 2
(d) None of the above
Ans: (b)

Q- Radon is a
(a) drug
(b) noble gas
(c) trade name of nylon
(d) explosive
Ans: (b)

Q- The mixture of noble gases is separated by
(a) Ramsay Rayleigh’s first method
(b) Ramsay Rayleigh’s second method
(c) Fischer and Ringe’s method
(d) Dewar’s coconut charcoal adsorption method
Ans: (d)

Q- Mark the halogen that does not give disproportionation reaction with alkalies
(a) Iodine (b) Chlorine
(c) Fluorine (d) Bromine
Ans: (c)

Q- Bleaching action of chlorine is due to the formation of
(a) HCl (b) H2
(c) HClO (d) Cl2O
Ans: (c)

Q- The gas is commonly used in anaesthesia
(a) methane
(b) nitrous oxide
(c) nitrogen
(d) hydrogen peroxide
Ans: (b)

Q- Which one is a good conductor of electricity?
(a) Red phosphorus
(b) Black phosphorus
(c) Violet phosphorus
(d) Scarlet phosphorus
Ans: (b)

Q- The mixture of white and red phosphorus can be separated by using
(a) Kerosene (b) Iodine
(c) NaOH (d) HNO3
Ans: (c)

Q- The starting material in Birkland and Eyde process for the manufacture of nitric acid is
(a) NH3 (b) N2 and O2
(c) NO2 (d) N2
Ans: (b)

Q- When CO2 is passed through an aqueous solution of bleaching powder, the gas evolved is
(a) Chlorine
(b) Oxygen
(c) Ozone
(d) Chlorine dioxide
Ans: (a)

Q- Which of the following is a pseudohalide?
(a) ICl (b) I3
(c) CN- (d) IF5
Ans: (c)

Q- When water is electrolysed, then which of the following is formed?
(a) D2O
(b) O2
(c) H2
(d) Both (b) and (c)
Ans: (d)

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