The complete hydrogenation of C 6
H 6 in the presence of nicked catalyst at 200oC gives
C6H8
C 6H10
C 6H 12
C 6H 14
Correct answer is C
No explanation has been provided for this answer.
Which of the following substances is suitable solvent for perfumes?
Benzene
Ethanol
Turpentine
Water
Correct answer is B
No explanation has been provided for this answer.
Chlorine
Hydrogen
Oxygen
Sodium
Correct answer is B
No explanation has been provided for this answer.
What is the oxidation number of chromium in K2CrO4?
+1
+2
+4
+6
Correct answer is D
K2CrO4 (O.N of K) X 2 + O.N of Cr + (O.N of oxygen) X 4 = 0
1 X 2 + X + -2 X 4 = 0
2 + x + -8 = 0
2 + x - 8 = 0
x = 8 - 2 = + 6
I
II
III
IV
Correct answer is A
No explanation has been provided for this answer.
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