(A) BF3
(B) N2
(C) O2
(D) NH3
Tag: Chemistry mcqs
Atomic radius of Carbon is?
(A) 77 pm
(B) 88 pm
(C) 113 pm
(D) 75 pm
___ halogen has the lowest electronegativity.
(A) Chlorine
(B) Bromine
(C) Iodine
(D) Flourine
Electrons can revolve only in those orbits which have fixed angular momentum?
(A) mvr=[2nh/3Π]
(B) mvr=[2nh/Π]
(C) mvr=[nh/2Π]
(D) mvr=[nh/Π]
One gram molecule of H2 is?
(A) 1.008 gram
(B) 2 gram
(C) 1 gram
(D) 1.8 gram
Symbol of Potassium is?
(A) P
(B) Ag
(C) Hg
(D) K
Dehydration of alcohols can be carried out with?
(A) KOH
(B) NaOH
(C) HCL
(D) H2SO4
Pitch is black residue of?
(A) Coke
(B) Coal Tar
(C) Coal
(D) Coal gas