(Download) CBSE Class-12 Sample Paper (Chemistry) 2014-15
Time Allowed: 3 hr
Maximum marks: 70
1. The following figure shows the variation of adsorption of N2 on charcoal with pressure at different constant temperatures:
Arrange the temperatures T1, T2 and T3 in the increasing order.
2. Give the formula of a noble gas species which is isostructural with IBr2 -
.
3. What is the effect of synergic bonding interactions in a metal carbonyl
complex?
4. PCl5 acts as an oxidizing agent. Justify.
5. Write the name of the product formed when benzenediazonium chloride solution is treated with potassium iodide.
6. Name the crystal defect which reduces the density of an ionic solid? What type of ionic substances show this defect?
7. The molar conductivity ( λm ) of KCl solutions at different concentrations at 298 K is plotted as shown in the figure given below: