Hypothetical plant hormones are
Options
(a) florigen (b) vernalin (c) florigen and vernalin (d) auxin
Correct Answer:
florigen and vernalin
Explanation:
The commonly recognized classes of plant hormones are the auxins, gibberelins, cytokinins, abscisic […]
Which expression is correct for the work done in adiabatic reversible expansion of an ideal gas
Options
(a) W = nRT ln V₂ / V₁ (b) Cv ( T₂ – T₁) (c) W = […]
Among the following, identify the compound which cannot act as both oxidising and reducing agents
Options
(a) H₂O₂ (b) HNO₂ (c) SO₂ (d) Cl₂
Correct Answer:
Cl₂
Explanation:
No explanation available. Be the […]
The formation of a gametophyte directly from the vegetative
Options
(a) apogamy (b) apospory (c) syngamy (d) heterogamy
Correct Answer:
apospory
Explanation:
No explanation available. Be the first to write the explanation for […]
Which of the following does not decompose on heating
Options
(a) MgCO₃ (b) Na₂CO₃ (c) Li₂CO₃ (d) Ca(HCO₃)₂
Correct Answer:
Na₂CO₃
Explanation:
No explanation available. Be the first to write the explanation for […]
Soap helps in cleaning the clothes because
Options
(a) it reduces the surface tension of solution (b) it gives strength to solution (c) it absorbs dirt (d) chemicals of the soap changes
Correct […]
Molecule in which the distance between the two adjacent carbon atoms is largest is
Options
(a) ethane (b) ethene (c) ethyne (d) benzene
Correct Answer:
ethane
Explanation:
No explanation available. Be the first […]
The partial oxygen pressure is maximum in
Options
(a) alveolar air (b) arterial blood (c) venous blood (d) expired air
Correct Answer:
expired air
Explanation:Partial pressures of oxygen in various parts of the respiratory […]
Coagulation will not be affected in the absence of factor
Options
(a) VII (b) XII (c) VIII (d) VI
Correct Answer:
VI
Explanation:
No explanation available. Be the first to write the explanation […]
Which of the following is increased during exercise?
Options
(a) heart rate and stroke volume (b) rate of respiration (c) systolic blood pressure (d) all of the above
Correct Answer:
all of the […]
2017 Copyright Doctor Dreams Training Academy