Which one of the following substances is used as a fertilizer?

K_{2} S O_{4} . A l_{2} (S O_{4})_{3} .24 H_{2} O

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C a (C N)_{2}

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C a (H_{2} P O_{4})_{2} H_{2} O .2 (C a S O_{4} .2 H_{2} O)

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C a S O_{4}

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Solution

The correct option is C $C a (H_{2} P O_{4})_{2} H_{2} O .2 (C a S O_{4} .2 H_{2} O)$
The correct option is (C).
Explanation:
(A) it is potash alum, so it cannot be used as a fertilizer.
(B) calcuim cyanide Ca(CN)2 is not used in fertilizer. Calcium cyanamide is used as fertilizer also known as nitrolim.
(C) it is called the triple Superphosphate which is a major carrier of phosphorus in soil.
(D) it is not used as fertilizer.

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Similar questions

Consider the following substances :

$N a C l, C a (O H)_{2}, N a H C O_{3}, N H_{3}, N a_{2} C O_{3}, H_{2} O, C l_{2} C O_{2}, C a S O_{4} .2 H_{2} O, 2 C a S O_{4} . H_{2} O, C a O C l_{2}$

(a) Which two substances combine to form bleaching powder :

(b) Which four substances are utilised in the production of washing soda ?

(d) Which compound is a part of baking powder ?

(e) Which compound is used as an antacid ?

Q. The aqueous solution of potash alum

[K_{2} S O_{4} . A l_{2} (S O_{4})_{3} .24 H_{2} O]

is acidic due to:

Q. Which of the following substances is a compound fertilizer?

Which of the following salt is not used as a fertilizer?

Q. How many gram ions of

S O_{4}^{2 -}

are present in

1

gram molecule of

K_{2} S O_{4} . A l_{2} (S O_{4})_{3} .24 H_{2} O

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