Consider the following statements about bucky ball A: It is also called fullerene B:It is also called Buckministerfullerene C:Bucky tubes (made of fullerenes) are several times stronger than steel wires D:Bucky ball is a plastic polymer Select correct statement(s),
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Consider the following statements in S and R.S : Both sin x and cos x are decreasing functions in the interval ((pi)/(2), pi) .R : If a differentiable function decreasing in an interval (a, b), then its derivative also decreases in (a, b).Which of the following is true ? a)Both S and R are wrong. b)Both S and R are correct, but R is not the correct c)S is correct and R is the correct explanation for S. d)S is correct and R is wrong.
Which of the following is/are wrong statements? a) Alkali metals, alkaline earth metals and helium are s-block elements. b) Pnicogens and halogens are p-block elements. c) The first member of the lanthanide series is lanthanum. d) The lightest liquid metal is gallium. e) Group 17 contains no metals. f) Elements whose atoms have two outermost shells incomplete are called transition elements
Choose the correct statement from the following. a) Zn is the least reactive element. b) 17^th group elements are called halogens. c) All shells possess d subshells. d) f block elements are known as transition elements.
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