The pressure at the bottom of a tank containing a liquid does not depend on
Options
(a) Acceleration due to gravity (b) Height of liquid column (c) Area of bottom surface (d) Nature of […]
Energy currency (reservoir) of the cells is
Options
(a) AMP (b) ATP (c) RNA (d) DNA
Correct Answer:
ATP
Explanation:
No explanation available. Be the first to write the explanation for this question […]
The reaction in which hydrogen peroxide acts as a reducing agent is
Options
(a) PbS + 4H₂O₂ → PbSO₄ + 4H₂O (b) 2KI + H₂O₂ → 2KOH + I₂ (c) 2FeSO₄ + H₂SO₄ […]
Reduction of H₃C – NC with hydrogen in presence of Ni/Pt as catalyst gives
Options
(a) CH₃NH₂ (b) CH₃NHCH₃ (c) CH₃CH₂NH₂ (d) (CH₃)₃N
Correct Answer:
CH₃NHCH₃
Explanation:
No explanation available. Be the first […]
The element that does not form a monoxide is
Options
(a) lead (b) tin (c) germanium (d) silicon
Correct Answer:
silicon
Explanation:
No explanation available. Be the first to write the explanation for […]
The substance that causes temporary hardness in water is
Options
(a) CaCO₃ (b) MgCO₃ (c) CaSO₄ (d) Mg(HCO₃)₂
Correct Answer:
Mg(HCO₃)₂
Explanation:
No explanation available. Be the first to write the explanation for […]
The increasing order of atomic radius for the elements Na, Rb, K and Mg is
Options
(a) Na < K < Mg < Rb (b) K < Na < Mg < Rb (c) […]
Limestone is not used in which of the following manufacturing processes
Options
(a) Phosphorus from phosphorite (b) Ordinary (soda lime) glass (c) Iron from haematite (d) Solvay process of sodium carbonate
Correct Answer: […]
One of the oxidants used with liquid propellants is
Options
(a) ammonium perchlorate (b) nitrocellulose (c) sulphuric acid (d) nitrogen tetroxide(N₂O₄)
Correct Answer:
nitrogen tetroxide(N₂O₄)
Explanation:
Liquid propellants consist of an oxidizer such […]
Electromagnetic separation is used in the concentration of
Options
(a) copper pyrites (b) bauxite (c) cassiterite (d) cinnabar
Correct Answer:
cassiterite
Explanation:
Electromagnetic separation is used when either the ore or the impurities […]
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