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Q.

 LIST - 1 (Color)                   LIST - 2 (Element(s))
A) blood red                                                  1) Cl
B) prussian blue                                           2) S
C) violet                                                         3) N and S
D) colourless                                                4) N
                                                                        5) P

The correct match is

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a

A B C D

 2 4 3 1

b

A B C D

3 4 2 1

c

A B C D

 4 3 2 1

d

A B  C D

 1 4 2 3

answer is C.

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Detailed Solution

When both N and S are present red colour is formed, this happens in Lassaigne's test.

Iron cations, water and cynaide ions are present in prussian blue.

S is composed of oxygen and sulphur atoms. Sulphur is an abundant chemical element found in the earth's crust. It's the tenth most common element by weight.

Elemental sulphur (what it means to be a sulphur atom) is a yellow solid. It has no taste, but reacts with oxygen to form sulfur oxides and is easily volatilized from this form to the smelly gaseous form we're all familiar with.

 

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