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JEE CHEMISTRY MCQ: d & f- BLOCK ELEMENTS

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Analyzing +4 | -1

During the detection of acidic radical present in a salt, a student gets a pale yellow precipitate soluble with difficulty in

\mathrm{NH}_4 \mathrm{OH}

solution when sodium carbonate extract was first acidified with dil.

\mathrm{HNO}_3

and then

\mathrm{AgNO}_3

solution was added. This indicates presence of:

View answer and explanation

Correct option: A

\mathrm{Br}^{-}

Option A (Br-) is correct because AgBr is a pale yellow precipitate that is sparingly soluble in NH4OH.

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}

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