CBSE Class 11 Chemistry Sample Paper Set 38

CBSE Class 11 Chemistry Sample Paper Set M.Sample Papers are the very important for every student. The sample papers should be practiced to gain extra marks in examinations. The sample papers have been prepared based on pattern of last year examinations and as per latest changes in the syllabus. Students, teachers and parents can download all CBSE educational material and very well prepared worksheets from this website.  All CBSE educational material is developed by our panel of teachers, have also been submitted by CBSE teachers and students. 

Q.1 Calculate the mass of 12.044×10²³ atoms of Sulphur ( S = 32 ) (1)

Q.2 What is limiting reactant? (1)

Q.3 Give the name and symbol of an element which is isoelectronic with S^2- ion? (1)

Q.4 To which group and period of the periodic table does the element with atomic number 57 belong? (1)

Q.5 What is the hybridization of chlorine in ClO^-₃ion? (1)

Q.6 Write chemical reaction to justify that hydrogen peroxide can act as oxidizing as well as reducing agent ?(2)

Q.7 a) Write the electronic configuration of Fe (Z=26) and count the total number of electrons having (n+l) = 4.

b) Write the electronic configuration of Cu²⁺ ion (z=29).(2)

Q.8 a) what is hydrogen economy ?

b) what is syngas or water gas shift reaction ?(2)

Q.9 a) Name the group of the periodic table which accommodates maximum number of elements.

b) Why has nitrogen higher first ionization enthalpy than oxygen?(2)

Q.10 Explain with reasons :

a) Mg²⁺ ion is smaller than O^2- ion, although both are isoelectronic.

b) The electron gain enthalpies of noble gases are positive.

OR

Explain on the basis of MOT why N₂ has greater bond dissociation enthalpy than N₂⁺?(2).

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