A total root parasite is
Options
(a) Dendrophthose (b) Orobanche (c) Viscum (d) Santalum
Correct Answer:
Orobanche
Explanation:
Orobanche is a total root parasite found on mustard, cabbage,potato,tomato,brinjal, etc.Aerial shoots are brown […]
A person suffers from beri-beri, rickets and scurvy if he is not taking adequate amounts of
Options
(a) Vitamin B₁₂, A and C (b) Vitamin B₁, D and C (c) Vitamin A, B […]
Phytochrome in plants is sensitive to
Options
(a) green light (b) blue light (c) red light (d) red and far red light
Correct Answer:
red and far red light
Explanation:
Phytochrome is a […]
Hormones released during stress condition is
Options
(a) gibberellin (b) auxin (c) ethylene (d) ABA
Correct Answer:
ABA
Explanation:
Abscisic acid (ABA) is a growth inhibitor which is involved in the seed dormancy. Dormant […]
An ideal gas at constant temperature and pressure expands and its
Options
(a) internal energy increases (b) internal energy decreases (c) internal energy remains same (d) endropy increases and then decreases
Correct Answer:
internal […]
Equal volumes of methanoic acid and sodium hydroxide are mixed, if x is the heat of formation of water, then heat evolved on neutralisation is
Options
(a) twice of x (b) equal to x […]
The neutralisation of a strong acid by a strong base liberates an amount of energy per mole of H⁺ that
Options
(a) depends upon which catalyst is used (b) depends upon the temperature at […]
If 900 J/g of heat is exchanged at boiling point of water, then what is increase in entropy
Options
(a) 900 J/mol (b) 87.2 J/mol (c) 43.4 J/mol (d) Zero
Correct Answer:
43.4 J/mol
The gas molecules have r.m.s. velocity of its molecules as 1000 m/s. What is its average velocity
Options
(a) 546 m/s (b) 921.58 m/s (c) 1012 m/s (d) 960 m/s
Correct Answer:
921.58 […]
Pollinia are present in which plant family?
Options
(a) asteraceae (b) myrtaceae (c) asclepiadaceae (d) malvaceae
Correct Answer:
asclepiadaceae
Explanation:
No explanation available. Be the first to write the explanation for this question […]
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