Thigmotropic movement is best shown by
Options
(a) movement in roots (b) movement in tendrils (c) insectivorous plants (d) movement in Mimosa pudica
Correct Answer:
movement in tendrils
Explanation:
Thigmotropism is a directional […]
Mitochondria perform all of the following functions except
Options
(a) nucleic acid synthesis (b) steroid synthesis (c) ATP synthesis (d) polysaccharide degradation
Correct Answer:
polysaccharide degradation
Explanation:
No explanation available. Be the first […]
Population explosion has occured in the last
Options
(a) 500 years (b) 300 years (c) 100 years (d) 50 years
Correct Answer:
50 years
Explanation:
No explanation available. Be the first to write […]
Pyramid of energy in a pond ecosystem is always
Options
(a) inverted (b) upright only (c) irregular (d) linear
Correct Answer:
upright only
Explanation:
No explanation available. Be the first to write the […]
The lusture of a metal is due to
Options
(a) its chemical inertness (b) its high polishing (c) its high density (d) presence of free electrons
Correct Answer:
presence of free electrons
Explanation: […]
When cold potassium permanganate (KMnO₄) is added to ethylene gives
Options
(a) methanol (b) ethanol (c) glycerol (d) ethylene glycol
Correct Answer:
ethylene glycol
Explanation:
No explanation available. Be the first to write […]
If 0.2 gram of an organic compound containing carbon, hydrogen and oxygen on combustion , yielded 0.147 gram carbon dioxide and 0.12 gram water, what will be the content of oxygen in substance
Options […]
The hybridisation of carbon in diamond ,graphite and acetylene is in the order of
Options
(a) sp sp² sp³ (b) sp³sp² sp (c) sp³sp sp² (d) sp² sp³ sp
Correct Answer:
sp³ sp² […]
When enthalpy and entropy change for a chemical reaction are – 2.5 x 10³ cals and 7.4 cals deg⁻¹ respectively predict the reaction at 298 K is
Options
(a) irreversible (b) reversible (c) spontaneous […]
Chlorine is liberated, when we heat
Options
(a) Pb(NO₃)₂ + MnO₂ (b) K₂Cr₂O₇ + MnO₂ (c) KMnO₄ + NaCl (d) K₂Cr₂O₇ + HCl
Correct Answer:
K₂Cr₂O₇ + HCl
Explanation:
No explanation available. Be […]
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