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Which of the following compounds is ionic:
(1) Kl
(2) CH4
(3) Diamond
(4) H2
Ans: Kl
Silver has a density of 10.5gcm -3 . The no. of silver atoms on a surface area of 10-12m 2 can be expressed in scientific notation aas y x 10x.The value of x is ..? Ans) d = m
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