Which one forms KHX₂ type compound
Which one forms KHX₂ type compound
Options
(a) HF (b) HCl (c) HI (d) HBr
Correct Answer:
HF
Explanation:
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Chemistry
Which of the following substances is used, in laboratory
Which of the following substances is used, in laboratory, for fast drying of netural gases
Options
(a) Phosphorus pentoxide (b) Anhydrous calcium chloride (c) Active charcoal (d) Sodium phosphate
Correct Answer:
Anhydrous […]
The best coagulant for the precipitation of Fe(OH)₃ is
The best coagulant for the precipitation of Fe(OH)₃ is
Options
(a) Na₂HPO₃ (b) NaNO₃ (c) Na₃PO₄ (d) Na₂SO₄
Correct Answer:
Na₃PO₄
Explanation:
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The physical adsorption of gases on the solid surface is due to
The physical adsorption of gases on the solid surface is due to
Options
(a) van der Waals forces (b) covalent bonding (c) hydrogen bonding (d) all of these
Correct Answer:
van der Waals […]
Which of the following oxides is used in lead storage battery
Which of the following oxides is used in lead storage battery
Options
(a) PbO (b) PbO₂ (c) Pb₂O₃ (d) Pb₃O₄
Correct Answer:
PbO₂
Explanation:
Lead storage battery consists of a group of lead […]
In which cell the free energy of a chemical reaction is directly converted into
In which cell the free energy of a chemical reaction is directly converted into electricity
Options
(a) Concentration cell (b) Fule cell (c) Lead storage battery (d) Lechlanche cell
Correct Answer:
Fule cell
Number of chloride ions around a single sodium ion in NaCl crystal is
Number of chloride ions around a single sodium ion in NaCl crystal is
Options
(a) 3 (b) 4 (c) 6 (d) 8
Correct Answer:
6
Explanation:
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In tetragonal crystal system, which of following is not true
In tetragonal crystal system, which of following is not true
Options
(a) All axial lengths and all axial angles are equal (b) All three axial lengths are equal (c) All three axial angles […]
Which of the following shows geometrical isomerism
Which of the following shows geometrical isomerism
Options
(a) propene (b) 1-butene (c) 1,1-dichlorobutane (d) 2-butene
Correct Answer:
2-butene
Explanation:
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Which gas is formed when CaC₂ reacts with H₂O
Which gas is formed when CaC₂ reacts with H₂O
Options
(a) Acetylene (b) Methane (c) Ethylene (d) Ethane
Correct Answer:
Acetylene
Explanation:
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