Strategy for class 12th board exam 2026 | 12th chemistry important questions | 95% marks strategy

Strategy for class 12th board exam 2026 | 12th chemistry important questions | 95% marks strategy

important questions of 12th chemistry
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Dear students,
is numerical ko solve Karke fatafat comment box Mein uska answer bhej do.,,👍

3. The vapour pressure of pure benzene at a certain temperature is 640 mm Hg. A non-volatile solute of a mass 2.175 × 10-3 kg is added to 39.0 × 10-3 kg of benzene. The vapour pressure of a solution is 600 mm Hg. What is the molar mass of the solute? Given C= 12, H = 1.