Match column-I (chemical composition of precipitates) with column-II (colour of the precipitate) and select the correct answer using the codes given below in the columns :
(a) $C o [H g (S C N)_{4}]$ (p) black
(b) $F e_{3} [F e (C N)_{6}]_{2}$ (q) rosy red
(c) $N i (d m g)_{2}$ (r) prussian blue
(d) PbS (s) deep blue

a-s , b-p , c-q , d-r

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a-s , b-r , c-q , d-p

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a-s , b-p , c-r , d-q

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a-p , b-r , c-q , d-s

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a-p , b-q , c-r , d-s

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Solution

The correct option is B a-s , b-r , c-q , d-p
$C o [H g (S C N)_{4}]$ - Deep Blue
$F e_{3} [F e (C N_{)} 6]_{2}$ - Prussian Blue
$N i (d m g)_{2}$ - Rosy red
$P b S$ - Black

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Similar questions

Q. Match the Column-I with Column-II. Choose the correct option among the following
Column – I Column – II
(A) Borax (p)

s p^{3}

hybridization of B
(B)

B F_{3}

(q)

s p^{2}

hybridization of B
(C) Diborane (r) Triangular unit
(D) Boric acid (s) Tetrahedral unit

Q. Match the following by appropriately matching the lists based on the information given in

Column I

and

Column II

\begin{matrix} C o l u m n I & C o l u m n I I (T y p e o f △ A B C) a. cot \frac{A}{2} = \frac{b + c}{a} & p. always right angled b. a tan A + b tan B = (a + b) tan \frac{A + B}{2} & q. always isosceles c. a cos A = b cos B & r. may be right angled d. cos A = \frac{sin B}{2 sin C} & s. may be right angled isosceles \end{matrix}

Match Column I with Column II with reference to types of reaction:

$\begin{matrix} Column I & Column II A. & Ionization reaction & p. & {CH}_{4} + 2 O_{2} \to {CO}_{2} + 2 H_{2} O B. & Dissociation reaction & q. & H_{2} O_{2} \to H_{2} O + O_{2} C. & Decomposition reaction & r. & Mg {Cl}_{2} \to {Mg}^{2 +} + 2 {Cl}^{-} D. & Combustion reaction & s. & {H_{2} O}_{(basic)} + {H_{2} O}_{(acidic)} \to H_{3} O^{+} + {OH}^{-} \end{matrix}$

Match Column-I with Column-II and select the correct answer using the codes given below the columns.
$\begin{matrix} Column-I & Column-II A . & Coal gas & P . & (C_{2} H_{6} + C_{3} H_{8} + C_{4} H_{10}) B . & Petroleum gas & Q . & (C H_{4} + C_{2} H_{6} + C_{3} H_{8} + C_{4} H_{10}) C . & Producer gas & R . & (H_{2} + C H_{4} + C O) D . & Natural gas & S . & (C O + N_{2}) \end{matrix}$
$[C_{2} H_{6} - ethane, C_{3} H_{8} - propane, C_{4} H_{10} - butane]$

Q. Match Column - I (metal) with Column - II (ores) and select the correct answer by choosing an appropriate option :-

Column - I	Column - II
A. Mn	p. Magnetite
B. Zn	q. Pyrolusite
C. Fe	r. Calamine
D. Hg	s. Cinnabar

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Match column-I (chemical composition of precipitates) with column-II (colour of the precipitate) and select the correct answer using the codes given below in the columns :(a) Co[Hg(SCN)4] (p) black(b) Fe3[Fe(CN)6]2 (q) rosy red(c) Ni(dmg)2 (r) prussian blue(d) PbS (s) deep blue

The correct option is B a-s , b-r , c-q , d-pCo[Hg(SCN)4]- Deep BlueFe3[Fe(CN)6]2- Prussian BlueNi(dmg)2- Rosy redPbS- Black

The correct option is B a-s , b-r , c-q , d-p
$C o [H g (S C N)_{4}]$ - Deep Blue
$F e_{3} [F e (C N_{)} 6]_{2}$ - Prussian Blue
$N i (d m g)_{2}$ - Rosy red
$P b S$ - Black