AIPMT 2011 Mains | Chemical Bonding and Molecular Structure Question 71 | Chemistry

AIPMT 2011 Mains

MCQ (Single Correct Answer)

-1

The pairs of species of oxygen and their magnetic behaviours are noted below. Which of the following presents the correct description?

$$O_2^ - ,O_2^{2 - }$$ - Both diamagnetic

$$O_2^ + ,{O_2}$$ - Both paramagnetic

O, $$O_{2}^{2-}$$ - Both paramagnetic

$${O^ + },O_2^{2 - }$$ - Both paramagnetic

AIPMT 2011 Prelims

MCQ (Single Correct Answer)

-1

The pairs of species of oxygen and their magnetic behavior are noted below. Which of the following presents the correct description?

O$$_2^ - $$, O$$_2^{2 - }$$ - Both diamagnetic

O⁺, O$$_2^{2 - }$$ - Both paramagnetic

O$$_2^{ + }$$, O₂ - Both paramagnetic

O, O$$_2^{2 - }$$ - Both paramagnetic

AIPMT 2011 Prelims

MCQ (Single Correct Answer)

-1

Which of the two ions from the list given below that have the geometry that is explained by the same hybridization of orbitals, NO$$_2^ - $$. NO$$_3^ - $$, NH$$_2^ - $$, NH$$_4^ + $$, SCN^$$-$$?

NO$$_2^ - $$ and NO$$_3^ - $$

NH$$_4^ + $$ and NO$$_3^ - $$

SCN^$$-$$ and NH$$_2^ - $$

NO$$_2^ - $$ and NH$$_2^ - $$

AIPMT 2011 Prelims

MCQ (Single Correct Answer)

-1

The correct order of increasing bond length of C $$-$$ H, C $$-$$ O, C $$-$$ C and C$$=$$C is

C $$-$$ H < C$$=$$C < C $$-$$ O < C $$-$$ C

C $$-$$ C < C$$=$$C < C $$-$$ O < C $$-$$ H

C $$-$$ O < C $$-$$ H < C $$-$$ C < C$$=$$C

C $$-$$ H < C $$-$$ O < C $$-$$ C < C$$=$$C

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