The mixture of concentrated HCl and HNO₃ made in 3:1 ratio contains
Options
(a) ClO₂ (b) NOCl (c) NCl₃ (d) N₂O₄
Correct Answer:
NOCl
Explanation:
No explanation available. Be the first to write […]
The reagent commonly used to determine hardness of water titrimetrically is
Options
(a) oxalic acid (b) disodium salt of EDTA (c) sodium citrate (d) sodium thiosulphate
Correct Answer:
disodium salt of EDTA
Explanation: […]
Which of the following reaction produces hydrogen
Options
(a) Mg + H₂O (b) H₂S₄O₈ + H₂O (c) BaO₂ + HCl (d) Na₂O₂ + 2HCl
Correct Answer:
Mg + H₂O
Explanation:
No explanation available. […]
The volume of 3.0 N-H₂O₂ strength is
Options
(a) 16.8 litres (b) 4.2 litres (c) 33.6 litres (d) 8.4 litres
Correct Answer:
16.8 litres
Explanation:
No explanation available. Be the first to write […]
Which of the following metals reacts with water
Options
(a) Copper (b) Nickel (c) Sodium (d) Silver
Correct Answer:
Sodium
Explanation:
No explanation available. Be the first to write the explanation for this […]
Deuterium nucleus contains
Options
(a) 1p + 1n (b) 2p + 0n (c) 1p + 1e⁻ (d) 2p + 2n
Correct Answer:
1p + 1n
Explanation:
Deuterium,an isotope of hydrogen, is ₁H². Thus, it […]
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 […]
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