Download App

4. Chemical bonding and molecular structure — Chemistry STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceChemistry4. Chemical bonding and molecular structure1 Mark
MCQ
Given below are two statements

Statement $I :$ $o-$Nitrophenol is steam volatile due to intramolecular hydrogen bonding.

Statement $II :$ $o-$Nitrophenol has high melting due to hydrogen bonding.

In the light of the above statements, choose the most appropriate answer from the options given below

  • A
    Statement $I$ is false but Statement $II$ is true
  • B
    Both statement $I$ and statement $II$ are true
  • C
    Both statement $I$ and statement $II$ are false
  • ✓
    Statement $I$ is true but statement $II$ is false
✓

Answer

Correct option: D.
Statement $I$ is true but statement $II$ is false
d
thus it is more volatile due to intramolecular $H-$bonding.

Melting point depends on packing efficiency

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

More "M.C.Q (1 Marks)" from 4. Chemical bonding and molecular structure→4. Chemical bonding and molecular structure — all question types→Chemistry STD 11 Science question papers→Rajasthan Board STD 11 Science question papers→Rajasthan Board question paper generator→

Similar questions

Which of the following is expected to be optically active
→
In the chemical reaction between stoichiometric quantities of $KMnO _4$ and $KI$ in weakly basic solution, what is the number of moles of $I _2$ released for $4$ moles of $KMnO _4$ consumed ?
→
Which of the following is the correct order of ionic radii
→
A sample of liquid in a thermally insulated container (a calorimeter) is stirred for $2\ hr$ . by a mechanical linkage to a motor in the surrounding, for this process
→
$3\, mole\, N_2H_4$ will lose $30 \,mole$ electrons to give new compound. Calculate  oxidation state of $N$ in new compound? (Oxidation state of $H$ remains unchanged)
→
The candela is the luminous intensity, in a given direction, of a source that emits monochromatic radiation of frequency ' $\mathrm{A}$ ' $\times 10^{12}$ hertz and that has a radiant intensity in that direction of $\frac{1}{{ }^{\prime}}$ watt per steradian. $'A'$ and $'B'$ are respectively
→
Given below are two statements:

Statement $I$: IUPAC name of $\mathrm{HO}-\mathrm{CH}_2-\left(\mathrm{CH}_2\right)_3-$ $\mathrm{CH}_2-\mathrm{COCH}_3$ is $7$-hydroxyheptan-2-one.

Statement $II$: $2$-oxoheptan-$7$-ol is the correct IUPAC name for above compound.In the light of the above statements. choose the most appropriate answer from the options given below:

→
The total number of isomers formed by ${C_5}{H_{10}}$ is
→
Which is correct statement? 

As the $s-$ character of a hybrid orbital decreases

$(I)$ The bond angle decreases     $(II)$ The bond strength increases

$(III)$ The bond length increases    $(IV)$ Size of orbitals increases

→
The enthalpy change on freezing of $1\, mol$ of water at $5\,^oC$ to ice at $-5\,^oC$ is .....$ kJ\, mol^{-1}$

(Given ${\Delta _{fus}}H = 6\, kJ\, mol^{-1}$ at $0\,^oC$,

$C_p(H_2O, l) =75.3\, J\, mol^{-1} \, K^{-1}$ ,

$C_p(H_2O, s) = 36.8\, J\, mol^{-1} \, K^{ -1}$ )

→