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JEE Main 202126 AugustMorning Shift
Exam
JEE Main
Year
2021
Date
26 August
Shift
Morning Shift
Subject
Chemistry
Chapter
p Block Elements (Group 13 & 14)

JEE Main 2021 · 26 August · Morning Shift · Chemistry · p Block Elements (Group 13 & 14)

The ratio of number of water molecules in Mohr's salt and potash...

The ratio of number of water molecules in Mohr's salt and potash alum is ×10−1.\times {10}^{- 1} . (Integer answer)

Correct answer

5

Step-by-step solution

Mohr's salt =FeSO4(NH4)2SO4⋅6H2O= {FeSO}_{4}{\left({NH}_{4}\right)}_{2}{SO}_{4} \cdot 6{H}_{2}O
Potash alum =KAl(SO4)2⋅12H2O= KAl{\left({SO}_{4}\right)}_{2} \cdot 12{H}_{2}O
So water molecule ratio =(612)=12=0.5=5×10−1= \left(\dfrac{6}{12}\right) = \dfrac{1}{2} = 0 . 5 = 5 \times {10}^{- 1}
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