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Model Paper 4 — NEET STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceNEETModel Paper 44 Marks
MCQ
How much amount of KCl is added in 500g of water to decrease the freezing point of water to $-0.2^{\circ} C$
$\left[K_{f}\left(H_2 O\right)=2 K Kg mol^{-1}\right]$
  • A
    3.725 g
  • B
    7.4 g
  • ✓
    1.8625 g
  • D
    6.2 g
✓

Answer

Correct option: C.
1.8625 g
(C) 1.8625 g,
$\Delta T _{ f }= i . K _{ f } \cdot m$

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