Bond angle is minimum for - Vidyadip

MCQ

Bond angle is minimum for

A
${H_2}O$
B
${H_2}S$
C
${H_2}Se$
✓
${H_2}Te$

✓

Answer

Correct option: D.

${H_2}Te$

d
(d) As we go down the group electronegativity decreases due to which repulsion between bonded pairs of electron also decreases. Hence, bond angle decreases.

All these are the hydrides of 6 th group elements in which the central atom undergo $S P^{3}$ hybridization and should posses the bond angle 109 degree but the bond angle distorts due to the repusions between lone pair and lone pair. But this repulsions are minimum in $H_{2}$ Te as the tellurium has large size which makes the repulsions minimum. Hence option D is correct.

${H_2}O$	${H_2}S$	$H_2Se$	${H_2}Te$
${104.5^o}$	${92.1^o}$	${91^o}$	${90^o}$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

JEE STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

Which of the following chemical system is non aromatic ?

The first order rate constant for a certain reaction increases from $1.667 \times 10^{-6}\, s^{-1}$ at $727\,^oC$ to $1.667 \times 10^{-4}\,s^{-1}$ at $1571\,^oC$. The rate constant at $1150\,^oC$, assuming constancy of activation energy over the given temperature range is [Given : $log \,19.9 = 1.299$ ]

Which is correct for any $H-$ like species

If $(\pm )$ $2-$ methyl butanoic acid were esterified by reaction with $(\pm )$ $2-$ butanol how many optically active compounds would be present in the final equilibrium reaction mixture ?

${C{H_3} - C{H_2} - C{H_2} - C{H_3}\xrightarrow[\Delta ]{{AlC{l_3}}}}$ $\begin{array}{*{20}{c}}
{C{H_3} - CH - C{H_3}} \\
{|\,\,\,\,} \\
{\,\,C{H_3}}
\end{array}$

Above reaction is an example of

Which of the following statements regarding copper salts is not true?

${H_2}\left( g \right) + \frac{1}{2}{O_2}\left( g \right) \to {H_2}O\left( g \right)$

$B.E. (H-H) = x_1 ; B.E. (O = O) = x_2$ ;

$B.E. (O -H) = x_3$

Heat of vaporisation of water $= x_4$ then $\Delta {H_f}$ [heat of formation of liquid water] is

Allyl cyanide contain $\sigma-$ and $\pi-$bonds

Which of the following is strongest Bronsted base?

Glucose molecule reacts with $X$ number of molecules of phenylhydrazine to yield osazone. The value of $X$ is