Download App

Chemical Bonding and Molecular Structure — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistryChemical Bonding and Molecular Structure3 Marks
Question
Elements X, Y and Z have 4, 5 and 7 valence electrons respectively:
  1. Write the molecular formula of the compounds formed by these elements individually with hydrogen.
  2. Which of there compound will have the highest dipole moment?
✓

Answer

  1.  
  1. HZ will have highest dipole moment because Z belongs to group 17, it is most electronegative.
$\therefore$ HZ is most polar, hence highest dipole moment.

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 "3 Marks Question" from Chemical Bonding and Molecular Structure→Chemical Bonding and Molecular Structure — all question types→Chemistry STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

What do you understand by bond pairs and lone pairs of electrons? Illustrate by giving one exmaple of each type.
→
Match standard free energy of the reaction with the corresponding equilibrium constant.
Column I Column II
i. $\Delta\text{G}^\ominus>0$ a. $\text{K}>1$
ii. $\Delta\text{G}^\ominus<0$ b. $\text{K}=1$
iii. $\Delta\text{G}^\ominus=0$ c. $\text{K}=0$
    d. $\text{K}<1$
→
A photon of wavelength $4 \times 10^{-7} m$ strikes on the metal surface, the work function of metal being 2.13 eV . Calculate
i. the energy of the photon $( eV )$,
ii. the kinetic energy of emission,
iii. the velocity of the photoelectron. $\left(1 eV =1.6020 \times 10^{-19} J\right)$.
→
Calculate the pH of the resultant mixtures:
10 mL of $0.2 \mathrm{M} \mathrm{~Ca}(\mathrm{OH})_2+25 \mathrm{~mL}$ of 0.1 M HCl
→
  1. Write two toxic effects of mercury contamination.
  2. Why does sea level rise due to global warming?
→
If 2 litres of $\mathrm{N}_2$ is mixed with 2 litres of $\mathrm{H}_2$ at a constant temperature and pressure, then what will be the volume of $\mathrm{NH}_3$ formed?
→
Explain the following:
$\mathrm{BF}_3$ does not hydrolyse.
→
Explain the following reactions:
Silicon dioxide is treated with hydrogen fluoride.
→
What happens:
  1. When $\mathrm{F}_2$ reacts with hot water
  2. Barium peroxide reacts with phosphoric acid
  3. Hydrogen peroxide reacts with ozone.
Write the chemical reacts involved.
→
1 M solution of $\mathrm{NaNO}_3$ has density $1.25 \mathrm{~g} \mathrm{~cm}^{-3}$. Calculate its molality.
(Mol. weight of $\mathrm{NaNO}_3=85 \mathrm{~g} \mathrm{~mol}^{-1}$ )
→