Where does the light reaction of photosynthesis occurs?
Options
(a) Stroma (b) Grana (c) Endoplasmic reticulum (d) Cytoplasm
Correct Answer:
Grana
Explanation:
Grana are the stacks of thylakoids that have photosynthetic pigments therefore, […]
The factor most important in regulating transpiration is
Options
(a) temperature (b) light (c) wind (d) relative humidity
Correct Answer:
temperature
Explanation:
Temperature is the most important factor that regulates transpiration. Transpiration takes […]
Which one among the following is most reactive towards electrophilic substitution reaction
Options
(a) Aniline (b) Nitrobenzene (c) benzoic acid (d) Acetanilide
Correct Answer:
Aniline
Explanation:
Aniline, -NH₂ group is highly activating group […]
In which of the following compounds, carbon exhibits a valency of 4 but oxidation state -2
Options
(a) CH₃Cl (b) CHCl₃ (c) CH₂Cl₂ (d) HCHO
Correct Answer:
CH₃Cl
Explanation:
No explanation available. Be […]
The compound that gives both iodoform and Fehling’s tests is
Options
(a) ethanol (b) propanone (c) 2-butanol (d) ethanal
Correct Answer:
ethanal
Explanation:
CH₃CHO gives test for aldehyde (Fehling’s test) and iodoform test. […]
The weakest base among the following is
Options
(a) dimethylamine (b) aniline (c) methylamine (d) ethylamine
Correct Answer:
aniline
Explanation:
No explanation available. Be the first to write the explanation for this […]
Mendius reaction converts an alkyl cyanide to
Options
(a) a primary amine (b) an aldehyde (c) a ketone (d) an oxime
Correct Answer:
a primary amine
Explanation:
Chemical reduction of alkyl cyanides using […]
Among the following the compound that is readily soluble in water is
Options
(a) BeSO₄ (b) CaSO₄ (c) SrSO₄ (d) BaSO₄
Correct Answer:
BeSO₄
Explanation:
No explanation available. Be the first to write […]
Which one of the following is not a greenhouse gas
Options
(a) Methane (b) Ozone (c) Carbon dioxide (d) Nitrogen
Correct Answer:
Nitrogen
Explanation:
CH₄, O₃ and CO₂ are green house gases since […]
Which is correct example of condensation polymer
Options
(a) Nylon, buna-S (b) Teflon, buna-N (c) Nylon 6,6, dacron (d) Neoprene, buna-S
Correct Answer:
Nylon 6,6, dacron
Explanation:
No explanation available. Be the first […]
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