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2336. Which one of the following chemicals is most suitale to control storage insects on a small scale ?
A. B.H.C.
B. E.D.B.
C. Celphos
D. Sevidol
Explanation:
2337. A molecule of glucose on complete oxidation yields .......... ATP molecules in case of aerobic respiration.
A. 36
B. 38
C. 40
D. 42
Explanation:
2338. The smallest organelle ina cell is
A. ribosome
B. peroxisome
C. lysosome
D. spherosome
Explanation:
2339. Two or more forms to a chemical element having different physical properties but rising to identical chemical compounds are called
A. Allotropes
B. Isotopes
C. Isomers
D. Isotones
Explanation:
2340. A microscopic organism playing a vital role in nitrogen cycle is
A. bacteria
B. protozoa
C. virus
D. red alga
Explanation:
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