JEE CHEMISTRY MCQ: d & f- BLOCK ELEMENTS

1 Medium

1 of 1

Analyzing +4 | -1

A mixture of inorganic substances on treatment with

{H}_2 {SO}_4

(dilute) gives out a gas which turns

{K}_2 {Cr}_2 {O}_7

paper green and lead acetate paper black. The mixture contains

View answer and explanation

Correct option: D

Sulphide

Option D (Sulphide) is correct because the gas produced that turns K2Cr2O7 paper green and lead acetate paper black is hydrogen sulfide (H2S), which is produced from a sulfide.

More Questions from d & f- BLOCK ELEMENTS

Practice All Chapter MCQs →

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