What will be the direction of movement of water, when a solution A having water potential of – 9 bars and another solution of B of -4 bars is separated by a semipermeable membrane?
In prokaryota, ribosomes present is
Options
(a) 70 S (b) 10 S (c) 80 S (d) 20 S
Correct Answer:
70 S
Explanation:
No explanation available. Be the first to write the explanation for […]
In mammals, the digestion of starch starts from
Options
(a) mouth (b) oesophagus (c) stomach (d) duodenum
Correct Answer:
mouth
Explanation:
The digestion of starch (carbohydrate) is initiated in mouth due to the action […]
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 […]
When acetic acid is heated with phosphorus pentaoxide(P₂O₅), the compound produced is
Options
(a) (CH₃CO)₂O (b) CH₃CHO (c) C₆H₄CHO (d) CH₃COCH₃
Correct Answer:
(CH₃CO)₂O
Explanation:
No explanation available. Be the first to write […]
Benzene is obtained by the fractional distillation of
Options
(a) light oil (b) heavy oil (c) middle oil (d) anthracene oil
Correct Answer:
light oil
Explanation:
No explanation available. Be the first to […]
The inert form of carbon is
Options
(a) coal (b) diamond (c) graphite (d) charcoal
Correct Answer:
diamond
Explanation:
No explanation available. Be the first to write the explanation for this question by […]
Which of the following atomic number of uranium is the most radioactive
Options
(a) U-226 (b) U-238 (c) U-235 (d) U-248
Correct Answer:
U-235
Explanation:
No explanation available. Be the first to write […]
Which of the following element, has the same oxidation state in all of its compounds
Options
(a) Oxygen (b) Hydrogen (c) Carbon (d) Fluorine
Correct Answer:
Fluorine
Explanation:
Fluorine is the most electronegative […]
Enzymes actually
Options
(a) are biological catalysts (b) are biochemical enhancers (c) decrease rate of reaction (d) increase activation energy
Correct Answer:
are biological catalysts
Explanation:
No explanation available. Be the first to […]
2017 Copyright Doctor Dreams Training Academy