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The formula of alum is...

The formula of alum is

A

(a) `K_2SO_4*Al_2(SO_4)_3*24H_2O`

B

(b) `K_4[Fe(CN)_6]`

C

(c) `K_2SO_4*Al_2(SO_4)_3*6H_2O`

D

(d) `Na_2CO_3*10H_2O`

Text Solution

Verified by Experts

The correct Answer is:
A
General formula for alum is
`M_2SO_4.R_2(SO_4)_(3).24H_2O`
M=monovalent cation `(K^(+), Na^(+)…)`
R=Trivalent cation `(Al^(+3), Fe^(+3))`
Hence, `K_2SO_4Al_2(SO_4)_(2).24H_2O` represent an alum.
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A2Z-COORDINATION COMPOUNDS-Section D - Chapter End Test
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  9. Which of the following has the largest number of isomers? .

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  11. Which one of the following is expected to exhibit optical isomerism (e...

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  18. Which of the following compounds shows optical isomerism?

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