Q. State whether the following statements are True or
False
(1) Gravitational force, F = Gm m/r. (Ch. 1)
(2) There are seven periods in the long form of the periodic table.
(Ch. 2)
(3) Nascent oxygen is always denoted by showing the symbol o.
(Ch. 3)
(4) The SI unit of heat is the joule. (Ch. 5)
(5) Iodine and diamond are lustrous substances. (Ch. 8)
(6) Rubber is a mamade macromolecule. (Ch. 9)
2GM
(7) Ve=
(Ch. 10)
R
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Answer:
(1) false
(2) true
(3) false
(4) true
(5) true
(6) true
(7) false
Explanation:
Gmm/r^2
Nascent oxygen is represented as [O].
Rubber is synthetic as well as natural, but rubber in its original naturally occurring form is not much useful.
Ve=(2GM/R)^1/2
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