MCQ
Which species has the same shape as $NH_3$ ?
  • A
    $SO^{2-}_3$
  • B
    $CO^{2-}_3$
  • C
    $NO^{-}_3$
  • D
    $SO_3$

Answer

$(a)\,NH_3 \to$ Trigonal pyramidal
$(a)\,SO^{2-}_3 \to$ Trigonal pyramidal   $(b) \,CO^{2-}_3 \to$ Trigonal planar

$(c)\, NO^-_3 \to$ Trigonal planar            $(d) \,SO_3 \to$ Trigonal planar

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

Similar questions

100ml of a buffer of 1MNH​(aq) and 1MNH4(aq) are placed in two half cells separately. A current of 1.5amp is passed through both half cells for 20min, if electrolysis of only water take place. The pH of :
How many resonance forms can be written for the nitrate ion, $(NO^-_3)$ ?
Of the following, the compound possessing optical isomerism
If ice and water are at equilibrium then which is correct. To obtain high amount of water

Ice $ \rightleftharpoons $ Water

On the basis of the following thermochemical data : $(\Delta _fG^oH^+_{(aq)} = 0)$

$H_2O(l) \rightarrow H^+(aq) + OH^-(aq)\,;\,\,\Delta H = 57.32\,kJ$

$H_2(g)+ \frac{1}{2} O_2(g)  \rightarrow H_2O(l)\,;\,\, \Delta H=-286.20\,kJ$

The value of enthalpy of formation of $OH^-$ ion at $25\,^oC$ is : .............. $\mathrm{kJ}$

The reaction of cyanamide, $NH _{2} CN _{( s )}$ with oxygen was run in a bomb calorimeter and $\Delta U$ was found to be $-742.24\, kJ\, mol ^{-1}$. The magnitude of $\Delta H _{298}$ for the reaction

$NH _{2} CN _{( s )}+\frac{3}{2} O _{2}( g ) \rightarrow N _{2( g )}+ O _{2}( g )+ H _{2} O _{(l)}$

is ............ $kJ$. (Rounded off to the nearest integer)

[Assume ideal gases and $\left. R =8.314\, J\, mol ^{-1} K ^{-1}\right]$

he atomic number is identical to the amount of ______ in the atom nucleus. 
Normality of $2\,M$ sulphuric acid is
The $IUPAC$ name of compound is
What will be the weight of lime $(CaO)$ obtained by heating $300\, kg$ of $90\%$ pure limestone $(CaCO_3)$. ............. $\mathrm{kg}$