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
The bond angle of water is ${104.5^o}$ due to
  • ✓
    Repulsion between lone pair and bond pair
  • B
    $s{p^3}$ hybridization of $O$
  • C
    Bonding of ${H_2}O$
  • D
    Higher electronegativity of $O$
✓

Answer

Correct option: A.
Repulsion between lone pair and bond pair
a
The bond angle in $H _2 O$ is $104.5^{\circ}$ due to the presence of two lone pair of electrons. This fact can be explained with the help of valence shell electron pair repulsion theory ($VSEPR$).

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

The empirical formula of an acid is $C{H_2}{O_2}$, the probable molecular formula of acid may be
→
A saturated solution of $A{g_2}S{O_4}$ is $2.5 \times {10^{ - 2}}$ $M$; The value of its solubility product is
→
Which of the following compounds doesn't have linear structure
→
Assertion : Both $Be$ and $Al$ can form complexes such as $BeF_4^{2-}$ and $AlF_6^{3-}$ respectively, $BeF_6^{3-}$ is not formed.
Reason : In case of $Be$, no vacant $d-$ orbitals are present in its outermost shell.
→
The third line in Balmer series corresponds to an electronic transition between which Bohr’s orbits in hydrogen
→
An amount of solid $N{H_4}HS$ is placed in a flask already containing ammonia gas at a certain temperature and $0.50$ $atm.$ pressure. Ammonium hydrogen sulphide decomposes to yield $N{H_3}$ and ${H_2}S$ gases in the flask. When the decomposition reaction reaches equilibrium, the total pressure in the flask rises to $0.84$ $atm$. The equilibrium constant for $N{H_4}HS$ decomposition at this temperature is
→
$50\, mL$ of $0.5\, M$ oxalic acid is needed to neutralize $25\, ml$ of sodium hydroxide solution. The amount ....... gram of $NaOH$ in $50\, mL$ of the given sodium hydroxide solution is
→
Which of the following is a inert element
→
Thalium shows different oxidation states because
→
Consider the following statements pertaining to fuel cells :-
$(a)$ Hydrogen oxygen fuel cell make use of concentrated $KOH$ solution as  electrolyte and porous graphite impregnated with platinum as electrodes
$(b)$ The efficiency of fuel cell is less then unity due to polarisation at electrodes and  the resistance offered by the electrode and the electrolyte
$(c)$ The electrical work, assuming the cell to be working reversibly may be  represented as $-\Delta G = W_{electrical} = -\Delta H + T \Delta S$
Which of the above statements are correct
→