Chemistry Worksheet With Answers Page 5
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7Ans.(d)
39. Transition metal with low oxidation number will act as
(a) an oxidising agent (b) a base
(c) an acid (d) None of these
Ans.(a)
40. Chloride of which of the following element is coloured?
(a) Hg (b) Ag
(c) Co (d) Zn
Ans.(c)
41. Spiegeleisn i an alloy of
(a) Fe, Co and Cr (b) Fe, Co and Mg
(c) Fe. Mg. and C (d) Fe, C and Mn
Ans.(d)
44. Which of the following is a wrong statement?
(a) Ni(CO)4 has zero oxidation number for Ni
(b) Ni(CO)4 has oxidation number +4 for Ni
(C) Ni is metal
(d) CO is gas
Ans.(b)
46 Standard electrode porernial of NHE a 298 K is
(a)0.OSV (b)0.10v
(c) 0.50 V (d) 0.00 V
Ans.(d)
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