(A) Ionic
(B) Hydrogen
(C) Covalent
(D) None of the above
To which class of compounds enzymes belongs?
(A) Proteins
(B) Phenols
(C) Alcohols
(D) None of the above
___ is a reduction reaction.
(A) Fe2+—>Fe3++e–
(B) Zn—>Zn2++2e–
(C) Na—>Na++1e–
(D) Cl+1e–—>Cl–
Color of concentrated solution of KMnO4 is?
(A) Green
(B) Golden
(C) Blue
(D) Purple
KCl is soluble in?
(A) Benzene
(B) Ether
(C) Petrol
(D) Water
What is the density of iron?
(A) 17.86 g cm-3
(B) 7.86 g cm-3
(C) 27.86 g cm-3
(D) 2.70 g cm-3
___ is an electron deficient molecule.
(A) BF3
(B) N2
(C) O2
(D) NH3
Atomic radius of Carbon is?
(A) 77 pm
(B) 88 pm
(C) 113 pm
(D) 75 pm