Pollent grains are shed at which stage?
Pollent grains are shed at which stage?
Options
(a) 2 celled (b) 3 celled (c) usually at 2-celled, but sometimes 3-celled (d) single celled stage
Correct Answer:
usually at 2-celled, but sometimes 3-celled
AMU2005
Sporophyte formation from gametophyte is called
Sporophyte formation from gametophyte is called
Options
(a) apogamy (b) sporogenesis (c) gametogenesis (d) apospory
Correct Answer:
apogamy
Explanation:
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Roots of higher plants show symbiosis with mycorrhizas for obtaining
Roots of higher plants show symbiosis with mycorrhizas for obtaining
Options
(a) sulphates (b) nitrogen (c) phosphates (d) all of these
Correct Answer:
phosphates
Explanation:
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What is formed when nitrobenzene is reduced using zinc and alkali
What is formed when nitrobenzene is reduced using zinc and alkali
Options
(a) Phenol (b) Hydrazobenzene (c) Aniline (d) Nitrosobenzene
Correct Answer:
Hydrazobenzene
Explanation:
In alkaline medium nitrosobenzene and phenyl hydroxylamine react with […]
What percentage of energy is transferred from one trophic level to another?
What percentage of energy is transferred from one trophic level to another?
Options
(a) 10% (b) 1% (c) 0.10% (d) 0.01%
Correct Answer:
10%
Explanation:
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What is formed when nitrobenzene is reduced using zinc and alkali
What is formed when nitrobenzene is reduced using zinc and alkali
Options
(a) Phenol (b) Hydrazobenzene (c) Aniline (d) Nitrosobenzene
Correct Answer:
Hydrazobenzene
Explanation:
No explanation available. Be the first to write the […]
Which of the following is obtained when auric chloride reacts with sodium
Which of the following is obtained when auric chloride reacts with sodium chloride
Options
(a) Na[AuCl] (b) Na[AuCl₂] (c) Na[AuCl₃] (d) Na[AuCl₄]
Correct Answer:
Na[AuCl₄]
Explanation:
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Which of the following lanthanide is commonly used
Which of the following lanthanide is commonly used
Options
(a) Lanthanum (b) Nobelium (c) Thorium (d) Cerium
Correct Answer:
Cerium
Explanation:
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The limiting radius ratio for tetrahedral shape is
The limiting radius ratio for tetrahedral shape is
Options
(a) 0 to 0.153 (b) 0.225 to 0.414 (c) 0.155 to 0.225 (d) 0.414 to 0.732
Correct Answer:
0.225 to 0.414
Explanation:
No explanation […]
Hexoses and pentoses are
Hexoses and pentoses are
Options
(a) disaccharides (b) monosaccharides (c) polysaccharides (d) oligosaccharides
Correct Answer:
monosaccharides
Explanation:
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