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1246. The element found on the surface of the moon is :
A. tin
B. tungsten
C. tantalum
D. titanium
Explanation:
1247. Which of the following is commonly called a polyamide ?
A. Rayon
B. Orlon
C. Terylene
D. Nylon
Explanation:
1248. An acid used to remove inkspots is :
A. oxalic acid
B. butyric acid
C. lactic acid
D. tartaric acid
Explanation:
1249. Which one of the following chemicals is most suitable to control storage insects on a small scale ?
A. B.H.C..
B. E.D.B.
C. Celphos
D. Sevidol
Explanation:
1250. Which of the following is the correct sequence of the following elements in increasing order of their relative densities ?1. Mercury 2. Gld3. Lead 4. Aluminium
A. 3, 2, 1, 4
B. 3, 1, 4, 2
C. 4, 1, 3, 2
D. 4, 3, 1, 2
Explanation:
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