JEE CHEMISTRY MCQ: d & f- BLOCK ELEMENTS

1 Hard

1 of 1

Analyzing +4 | -1

Sodium salt of an organic acid

'X'

produces effervescence with conc.

{H_2}S{O_4}

'X'

reacts with the acidified aqueous

CaC{l_2}

solution to give a white precipitate which decolourises acidic solution of

KMn{O_4}

'X'

View answer and explanation

Correct option: D

N{a_2}{C_2}{O_4}

Option D is correct because sodium oxalate (Na₂C₂O₄) produces effervescence with conc. H₂SO₄, forms a white precipitate with CaCl₂, and decolorizes acidic KMnO₄.

More Questions from d & f- BLOCK ELEMENTS

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Mercury is transported in metal containers made of: Cadmipone is a mixture of: The number of element from the following that do not belong to lanthanoids is :
Eu, Cm, Er, Tb, Yb and Lu Statement-I:

{Sm}^{3+}

{Dy}^{3+}

have same colour (yellow).

Statement-II: Both ions are having same number of unpaired electrons. The most common oxidation state of Lanthanoid
elements is +3. Which of the following is likely to
also form other oxidation state? A mixture of

\mathrm{Ti}{\mathrm{O}_2}

and

\mathrm{BaS}{\mathrm{O}_4}

is called