Chemistry XI Content
HSEB Model Question for Chemistry – Class 11
Time : 3 hrs
Full Marks : 75
Attempt any Fifteen question : 15 × 2 = 30
Q.1. State Law of reciprocal proportion.
Q.2. The oxide of an element contains 67.67 % of oxygen and V.D. of its volatile chloride is 79
Attempt any five Question. 5 * 5 = 25
Q.23. Urea [(NH2)2CO] is prepared by reacting ammonia with carbon dioxide :
Attempt any two questions. : 2 × 10 = 20
Q.30. State Boyle’s law and Charles law. Derive PV=nRT. What is the density (in gram per liter) of ammonia at STP if the gas in a 1.0L bulb weights 0.672g at 25oC and 733.4 mm Hg pressure.