NEET 2016 Phase 1 | p-Block Elements Question 42 | Chemistry

PREVIOUS NEXT

NEET 2016 Phase 1

MCQ (Single Correct Answer)

-1

Which one of the following orders is correct for the bond dissociation enthalpy of halogen molecules?

Br₂ > I₂ > F₂ > Cl₂

F₂ > Cl₂ > Br₂ > I₂

I₂ > Br₂ > Cl₂ > F₂

Cl₂ > Br₂ > F₂ > I₂

NEET 2016 Phase 1

MCQ (Single Correct Answer)

-1

Match the compounds given in column I with the hybridisation and shape given in column II and mark the correct option

Column $${\rm I}$$		Column $${\rm I}$$$${\rm I}$$
(A)	XeF₆	(i)	distorted octahedral
(B)	XeO₃	(ii)	square planar
(C)	XeOF₄	(iii)	pyramidal
(D)	XeF₄	(iv)	square pyramidal

(A) $$ \to $$ (iv); (B) $$ \to $$ (iii); (C) $$ \to $$ (i); (D) $$ \to $$ (ii)

(A) $$ \to $$ (iv); (B) $$ \to $$ (i); (C) $$ \to $$ (ii); (D) $$ \to $$ (iii)

(A) $$ \to $$ (i); (B) $$ \to $$ (iii); (C) $$ \to $$ (iv); (D) $$ \to $$ (ii)

(A) $$ \to $$ (i); (B) $$ \to $$ (ii); (C) $$ \to $$ (iv); (D) $$ \to $$ (iii)

AIPMT 2015

MCQ (Single Correct Answer)

-1

Strong reducing behavior of H₃PO₂ is due to

high electron gain enthalpy of phosphorus

high oxidation state of phosphorus

presence of two $$-$$OH groups and one P$$-$$H bond

presence of one $$-$$OH group and two P$$-$$H bonds.

AIPMT 2015

MCQ (Single Correct Answer)

-1

The variation of the boiling points of the hydrogen halides is in the order HF > HI > HBr > HCl.

What explains the higher boiling point of hydrogen fluoride?

There is strong hydrogen bonding between HF molecules.

The bond energy of HF molecules is greater than in other hydrogen halides.

The effect of nuclear shielding is much reduced in fluorine which polarises the HF molecule.

The electronegativity of fluorine is much higher than for other elements in the group.

PREVIOUS NEXT

NEET Subjects

Browse all chapters by subject

Biology

Botany

Zoology

Human Health and Diseases Body Fluids and Its Circulation Locomotion and Movement Neural Control and Coordination Reproduction in Organisms Reproductive Health Structural Organisation in Animals Digestion and Absorption Excretory Products and Their Elimination Chemical Coordination and Integration Human Reproduction Animal Kingdom Breathing and Exchange of Gases Evolution