AIPMT 2012 Mains | NEET Year Wise Previous Years Questions

AIPMT 2012 Mains

MCQ (Single Correct Answer)

Which one of the following is a wrong statement regarding mutations ?

UV and Gamma rays are mutagens

Deletion and insertion of base pairs cause frame-shift mutations

Cancer cells commonly show chromosomal aberrations

Change in a single base pair of DNA does not cause mutation

AIPMT 2012 Mains

MCQ (Single Correct Answer)

The orbital angular momentum of a p-electron is given as

$${h \over {\sqrt 2 \pi }}$$

$$\sqrt 3 {h \over {2\pi }}$$

$$\sqrt {{3 \over 2}} {h \over \pi }$$

$$\sqrt 6 {h \over {2\pi }}$$

AIPMT 2012 Mains

MCQ (Single Correct Answer)

During change of O₂ to O$$_2^{ - }$$ ion, the electron adds on which one of the following orbitals ?

$${\pi ^ * }$$ orbital

$$\pi $$ orbital

$${\sigma ^ * }$$ orbital

$$\sigma $$ orbital

AIPMT 2012 Mains

MCQ (Single Correct Answer)

Four diatomic species are listed below. Identify the correct order in which the bond order is increasing in them

$$NO < {O_2}^ - < {C_2}^{2 - } < He_2^ + $$

$${O_2}^ - < NO < {C_2}^{2 - } < He_2^ + $$

$${C_2}^{2 - } < He_2^ + < {O_2}^ - < NO$$

$$He_2^ + < {O_2}^ - < NO < {C_2}^{2 - }$$