MCQ
Which species is planar?
  • $CO^{2-}_3$
  • B
    $SO^{2-}_3$
  • C
    $ClO^-_3$
  • D
    $BF^-_4$

Answer

Correct option: A.
$CO^{2-}_3$
a

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

The magnetic moment of an octahedral homoleptic $Mn(II)$ complex is $5.9\,BM.$ The suitable ligand for this complex is
Which of the following complex compound exhibits geometrical isomerism ?
Sodium chloride when heated with conc. ${H_2}S{O_4}$ and solid potassium dichromate gives
Benzoic acid has higher molecular weight in benzene and less in water because
Given below are two statements:

Statement $I$: Fluorine has most negative electron gain enthalpy in its group.

Statement $II$: Oxygen has least negative electron gain enthalpy in its group.

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

The correct acidity order of the following is
The electronic configuration of three elements $A,B$ and $C$ are given below. The bond between $B$ and $C$ will be

$A : 1s^2\, 2s^2\, 2p^6$
$B : 1s^2\, 2s^2\, 2p^6\, 3s^2\, 3p^3$
$C : 1s^2\, 2s^2\, 2p^6\, 3s^2\, 3p^5$

The half life of a radioactive isotope is $4\, hours$. If the initial mass of isotope is $200\, gram$ then what will be the disintegrated amount of it after $16\, hours$  .......... $gm$
The trivalent ion having largest size in following is
Vapour pressure of chloroform $(CHCl_3)$ and dichloromethane $(CH_2Cl_2)$ at $25^o C$ are $200\, mm\, Hg$ and $41.5\, mm \,Hg$ respectively. Vapour pressure of the solution obtained by mixing $25.5\, g$ of $CHCl_3$ and $40 \,g$ of $CH_2Cl_2$ at the same temperature will be

(Molecular mass of $CHCl_3 = 119.5 \,u$ and molecular mass of $CH_2Cl_2 = 85\, u$)