H₂ will not reduce which of following oxide?
Options
(a) Aluminium oxide (b) Calcium oxide (c) Ferrous oxide (d) None of the above
Correct Answer:
None of the above
Explanation:
No explanation available. […]
Which of the following can produce hydrogen from water
Options
(a) Heated stannic oxide (b) Heated iron (c) Heated aluminium oxide (d) Heated copper oxide
Correct Answer:
Heated iron
Explanation:
No explanation available. […]
Hydrogen can be fused to form helium at
Options
(a) high temperature and high pressure (b) high temperature and low pressure (c) low temperature and high pressure (d) low temperature and low pressure
By which of the following processes permanent hardness of water can be removed
Options
(a) Soda lime (b) Sodium bicarbonate (c) Washing soda (d) Sodium chloride
Correct Answer:
Washing soda
Explanation:
No explanation […]
Triple point of water is
Options
(a) 273 K (b) 373 K (c) 203 K (d) 193 K
Correct Answer:
273 K
Explanation:
No explanation available. Be the first to write the explanation […]
Hydrogen burns in air with a
Options
(a) light bluish flame (b) yellow flame (c) green flame (d) none of these
Correct Answer:
light bluish flame
Explanation:
No explanation available. Be the first […]
The maximum number of hydrogen bonds formed by a water molecule in ice is
Options
(a) 4 (b) 1 (c) 2 (d) 3
Correct Answer:
4
Explanation:
No explanation available. Be the first […]
What is the value of carbonate hardness of water sample if 100 mL of it took 5 mL of 0.09 N HCl solution ? (Molecular weight of Na₂CO₃ = 106)
Options
(a) 4.50 […]
Bond angle in H₂O₂ is
Options
(a) 97⁰ (b) 91⁰ (c) 94.8⁰ (d) 99.8⁰
Correct Answer:
97⁰
Explanation:
No explanation available. Be the first to write the explanation for this question by […]
Heavy water is obtained by
Options
(a) boiling water (b) fractional distillation of H₂O (c) prolonged electrolysis of H₂O (d) heating H₂O₂
Correct Answer:
prolonged electrolysis of H₂O
Explanation:
No explanation available. Be […]
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