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356. The fourth state of matter is
A. solid
B. liquid
C. plasma
D. gas
Explanation:
357. Given below are two statements, labeled as Assertion (A) and Reason (R). In the context of the two statements, which of the following is correct ? 1. Assertion (A) : Mating of the cow and a bull at any time will not be useful for breeding purposes. 2. Reason (R) : Fertilization may not take place.
A. Both A and R are true but R is the correct explanation of A.
B. Both A and R are true but R is not the correct explanation of A.
C. A is true but R is false.
D. A is false but R is true.
Explanation:
358. Deep blue colour is imparted to glass by the presence of
A. iron oxide
B. cupric oxide
C. nickel oxide
D. cobaly oxide
Explanation:
359. Which of the following chemicals is most suitable to control insects on small scale ?
A. E.D.B.
B. B.H.C.
C. Celphos
D. Sevidol
Explanation:
360. From whihc part of the Geranium plant is its oil (used in making perfumes) extracted ?
A. Roots
B. Stems
C. Leaves
D. Flowers
Explanation:
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