Q.61. Which does not react with water? (2015)
(a) BeO (b) BaO (c) MgO (d) SrO
Ans. (a) BeO
Q.62. Which sulphate crystallize without water? (2015)
(a) Ba (b) Be (c) Mg (d) Ca
Ans. (a) Ba
Q.63. Which is the lightest constructional metal in industry. (2015)
(a) Mg (b) Al (c) Ti (d) Fe
Ans. (a) Mg
Q.64. Interstitial carbides do not show the following property:
(a) They are good conductors of electricity.
(b) They are chemically inert.
(c) They are extremely hard.
(d) These carbides are very stable.
Ans. (d) These carbides are very stable.
Q.65. Colour of a solution of C60 in toluene is: (2015)
(a) Purple (b) Orange-red (c) Yellow (d) Green
Ans. (a) Purple
Q.66. What is false about alkali metals?
(a) Group 1 metal ions are ‘soft’ Lewis acids.
(b) Crown ethers form complexes with alkali metal ions that are reasonably stable in non-aqueous solution.
(c) Bicyclic cryptand ligands form complexes with alkali metals that are even more stable.
(d) Monodentate ligands are only weakly bound to alkali metals.
Ans. (d) Monodentate ligands are only weakly bound to alkali metals.
Q.67. Which is used in pyrotechnics?
(a) LiNO3 (b) CoCl2 (c) CuSO4 (d) IF7
Ans. (c) CuSO4
Q.68. Chile saltpetre is:
(a) NaNO3 (b) KNO3 (c) Li3N (d) Mg3N2
Ans. (a) NaNO3
Q.69. What is not true for nitric oxide?
(a) It acts as a neurotransmitter.
(b) It controls blood pressure.
(c) It provides protection from bacterial infection.
(d) It is diamagnetic.
Ans. (d) It is diamagnetic.
Q.70. Which statement is false?
(a) Sodium alkyls are colourless solids.
(b) Lithium aryls are liquids.
(c) Lithium alkyls are insoluble in organic solvents.
(d) Potassium alkyls are insoluble in organic solvents.
Ans. (c) Lithium alkyls are insoluble in organic solvents.
Q.71. What is false?
(a) Liquid ammonia is a useful non-aqueous solvent.
(b) Hydrazine is a colourless liquid.
(c) Hydrazine is used as a rocket fuel.
(d) Hydroxylamine is a stronger base than ammonia.
Ans. (d) Hydroxylamine is a stronger base than ammonia.
Q.72. Which is a false statement?
(a) Beryllium occurs naturally as beryl.
(b) Magnesium is extracted from dolomite.
(c) Calcium is central to cell signalling processes in higher organisms.
(d) All the isotopes of radium are not radioactive.
Ans. (d) All the isotopes of radium are not radioactive.
Q.73. Phosphorus shows + V oxidation number in:
(a) HPO32- (b) P2O74- (C) H2PO (d) P2O64-
Ans. (b) P2O74-
Q.74. Which is a metal?
(a) Po (b) Se (c) Te (d) S
Ans. (c) Te
Q.75. Sulphur does not show the following property:
(a) Sulphur reacts with liquid I2.
(b) Sulphur ignites in F2 to form SF6.
(c) Sulphur reacts with Cl2 to form S2C12.
(d) Suiphur dissolves in Br2 to give S2 Br2.
Ans. (a) Sulphur reacts with liquid I2.
Q.76. Order of reactivity of the interhalogens is:
(a) C1F3 > BrF3 > IF7 (b) BrF3 > ClF3 > IF7
(c) C1F3 > IF7 > BrF3 (d) IF7 > CIF3 > BrF3.
Ans. (c) C1F3 > IF7 > BrF3
Q.77. Correct statement is:
(a) SF6 is a green house gas (b) SO3 contributes to acid rain.
(c) SF6 is extremely reactive. (d) S4N4 is thermochromic.
Ans. (b) SO3 contributes to acid rain.
Q.78. The name halogens is derived from:
(a) French words (b) Latin words (c) Greek words (d) English words
Ans. (c) Greek words
Q.79. Hydrides of the group 15 elements do not show the following property:
(a) On descending the group, their reducing power decreases.
(b) All are poisonous.
(c) All are foul smelling gases.
(d) Their stability decreases on descending the group.
Ans. (a) On descending the group, their reducing power decreases.
Q.80. Which is a false statement?
(a) Group 1 hydrides have rock-salt structures.
(b) Saline hydrides are soluble in non- aqueous solvents.
(c) Saline hydrides dissolve in molten alkali halides.
(d) Magnesium hydride is used as a hydrogen storage medium for fuel cells.
Ans. (b) Saline hydrides are soluble in non- aqueous solvents.
Next Page - 1 - 2 - 3 - 4
(a) BeO (b) BaO (c) MgO (d) SrO
Ans. (a) BeO
Q.62. Which sulphate crystallize without water? (2015)
(a) Ba (b) Be (c) Mg (d) Ca
Ans. (a) Ba
Q.63. Which is the lightest constructional metal in industry. (2015)
(a) Mg (b) Al (c) Ti (d) Fe
Ans. (a) Mg
Q.64. Interstitial carbides do not show the following property:
(a) They are good conductors of electricity.
(b) They are chemically inert.
(c) They are extremely hard.
(d) These carbides are very stable.
Ans. (d) These carbides are very stable.
Q.65. Colour of a solution of C60 in toluene is: (2015)
(a) Purple (b) Orange-red (c) Yellow (d) Green
Ans. (a) Purple
Q.66. What is false about alkali metals?
(a) Group 1 metal ions are ‘soft’ Lewis acids.
(b) Crown ethers form complexes with alkali metal ions that are reasonably stable in non-aqueous solution.
(c) Bicyclic cryptand ligands form complexes with alkali metals that are even more stable.
(d) Monodentate ligands are only weakly bound to alkali metals.
Ans. (d) Monodentate ligands are only weakly bound to alkali metals.
Q.67. Which is used in pyrotechnics?
(a) LiNO3 (b) CoCl2 (c) CuSO4 (d) IF7
Ans. (c) CuSO4
Q.68. Chile saltpetre is:
(a) NaNO3 (b) KNO3 (c) Li3N (d) Mg3N2
Ans. (a) NaNO3
Q.69. What is not true for nitric oxide?
(a) It acts as a neurotransmitter.
(b) It controls blood pressure.
(c) It provides protection from bacterial infection.
(d) It is diamagnetic.
Ans. (d) It is diamagnetic.
Q.70. Which statement is false?
(a) Sodium alkyls are colourless solids.
(b) Lithium aryls are liquids.
(c) Lithium alkyls are insoluble in organic solvents.
(d) Potassium alkyls are insoluble in organic solvents.
Ans. (c) Lithium alkyls are insoluble in organic solvents.
Q.71. What is false?
(a) Liquid ammonia is a useful non-aqueous solvent.
(b) Hydrazine is a colourless liquid.
(c) Hydrazine is used as a rocket fuel.
(d) Hydroxylamine is a stronger base than ammonia.
Ans. (d) Hydroxylamine is a stronger base than ammonia.
Q.72. Which is a false statement?
(a) Beryllium occurs naturally as beryl.
(b) Magnesium is extracted from dolomite.
(c) Calcium is central to cell signalling processes in higher organisms.
(d) All the isotopes of radium are not radioactive.
Ans. (d) All the isotopes of radium are not radioactive.
Q.73. Phosphorus shows + V oxidation number in:
(a) HPO32- (b) P2O74- (C) H2PO (d) P2O64-
Ans. (b) P2O74-
Q.74. Which is a metal?
(a) Po (b) Se (c) Te (d) S
Ans. (c) Te
Q.75. Sulphur does not show the following property:
(a) Sulphur reacts with liquid I2.
(b) Sulphur ignites in F2 to form SF6.
(c) Sulphur reacts with Cl2 to form S2C12.
(d) Suiphur dissolves in Br2 to give S2 Br2.
Ans. (a) Sulphur reacts with liquid I2.
Q.76. Order of reactivity of the interhalogens is:
(a) C1F3 > BrF3 > IF7 (b) BrF3 > ClF3 > IF7
(c) C1F3 > IF7 > BrF3 (d) IF7 > CIF3 > BrF3.
Ans. (c) C1F3 > IF7 > BrF3
Q.77. Correct statement is:
(a) SF6 is a green house gas (b) SO3 contributes to acid rain.
(c) SF6 is extremely reactive. (d) S4N4 is thermochromic.
Ans. (b) SO3 contributes to acid rain.
Q.78. The name halogens is derived from:
(a) French words (b) Latin words (c) Greek words (d) English words
Ans. (c) Greek words
Q.79. Hydrides of the group 15 elements do not show the following property:
(a) On descending the group, their reducing power decreases.
(b) All are poisonous.
(c) All are foul smelling gases.
(d) Their stability decreases on descending the group.
Ans. (a) On descending the group, their reducing power decreases.
Q.80. Which is a false statement?
(a) Group 1 hydrides have rock-salt structures.
(b) Saline hydrides are soluble in non- aqueous solvents.
(c) Saline hydrides dissolve in molten alkali halides.
(d) Magnesium hydride is used as a hydrogen storage medium for fuel cells.
Ans. (b) Saline hydrides are soluble in non- aqueous solvents.
Next Page - 1 - 2 - 3 - 4
To get updates of this website please
follow us on Facebook and Twitter with the help of buttons given upper right
side and if you are satisfied by the information then share it with your
friends by clicking the share button.
Thanks!