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Byju's Answer

Standard XII

Chemistry

Preparation of Hydrogen

Which of the ...

Question

Which of the following mixtures is used in the preparation of tips of match
sticks ?

S + K

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S b_{2} S_{3} + S

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K_{2} C r_{2} O_{7} + S + P

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P + K

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Solution

The correct option is C $K_{2} C r_{2} O_{7} + S + P$

Tip of Match has the following chemicals potassium dichromaate (an oxidant), sulfur, phosporous( $K_{2} C r_{2} O_{7} + S + P$ ),starch, glue and some other ingredients.
Hence option C is correct.

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Similar questions

In the preparation of

C a O

from

C a {C O}_{3}

using the equilibrium

C a {C O}_{3} (s) ⇌ C a O (s) + {C O}_{2} (g)

K_{p}

is expressed as:

log K_{p} = 7.282 - \frac{8500}{T}

for complete decomposition of

C a {C O}_{3}

the temperature in celsius to be used is:

Q. In the preparation of

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from

C a {C O}_{3}

using the equilibrium

C a {C O}_{3} (s) ⇌ C a O (s) + {C O}_{2} (g)

K_{p}

is expressed as

log K_{p} = 7.282 - \frac{8500}{T}

for the complete decomposition of

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, the temperature in celsius to be used is____________.

Q. In the preparation of CaO from

C a C O_{3}

using the equilibrium

C a C O_{3} (s) ⇌ C a O (s) + C O_{2} (g) K_{p}

is expressed as log

K_{p} = 7.282 - \frac{8500}{T}

for the complete decomposition of

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Q. Which non-metal is used for making tips of match sticks?

Match the following

$\begin{matrix} c o l o u m n I & c o l o u m n I I (I) (N H_{4})_{2} S O_{4} & (P) h = \sqrt{\frac{K_{H}}{C}} (I I) K C l & (Q) P^{H} = \frac{1}{2} [p^{K_{w}} + p^{K_{a}} + l o g c] (I I I) (C H_{3}) C O O K & (R) K^{H} = \frac{K_{w}}{K_{a} * K_{b}} (I V) (N H_{4})_{2} S & (S) [H^{+}] = [O H^{-}] \end{matrix}$

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Which of the following mixtures is used in the preparation of tips of match sticks ?

The correct option is C K2Cr2O7+S+P Tip of Match has the following chemicals potassium dichromaate (an oxidant), sulfur, phosporous(K2Cr2O7+S+P),starch, glue and some other ingredients.Hence option C is correct.

Which of the following mixtures is used in the preparation of tips of match
sticks ?

The correct option is C $K_{2} C r_{2} O_{7} + S + P$

Tip of Match has the following chemicals potassium dichromaate (an oxidant), sulfur, phosporous( $K_{2} C r_{2} O_{7} + S + P$ ),starch, glue and some other ingredients.
Hence option C is correct.