1
NEET 2013
MCQ (Single Correct Answer)
+4
-1
Change Language
Which of the following is electron-deficient ?
A
(BH3)2
B
PH3
C
(CH3)2
D
(SiH3)2
2
NEET 2013
MCQ (Single Correct Answer)
+4
-1
Change Language
Identify the correct order of solubility in aqueous medium.
A
Na2S > CuS > ZnS
B
Na2S > ZnS > CuS
C
Cus > ZnS > Na2S
D
ZnS > Na2S > CuS
3
AIPMT 2012 Mains
MCQ (Single Correct Answer)
+4
-1
Change Language
During change of O2 to O$$_2^{ - }$$ ion, the electron adds on which one of the following orbitals ?
A
$${\pi ^ * }$$ orbital
B
$$\pi $$ orbital
C
$${\sigma ^ * }$$ orbital
D
$$\sigma $$ orbital
4
AIPMT 2012 Mains
MCQ (Single Correct Answer)
+4
-1
Change Language
Four diatomic species are listed below. Identify the correct order in which the bond order is increasing in them
A
$$NO < {O_2}^ - < {C_2}^{2 - } < He_2^ + $$
B
$${O_2}^ - < NO < {C_2}^{2 - } < He_2^ + $$
C
$${C_2}^{2 - } < He_2^ + < {O_2}^ - < NO$$
D
$$He_2^ + < {O_2}^ - < NO < {C_2}^{2 - }$$
NEET Subjects
EXAM MAP