CS/B.TECH(NEW)/SEM-2/CH-201/2013
2013
CHEMISTRY - I
Time Allotted : 3 Hours Full Marks : 70
The figures in the margin indicate full marks.
Candidates are required to give their answers in their own words
as far as practicable.
GROUP – A
( Multiple Choice Type Questions )
1. Choose the correct alternatives for the following :
10x1 = 10
i) For an endothermic reaction
a) ∆H is positive
b) ∆H is negative
c) ∆H = 0
d) ∆ U is negative.
ii) Which one of the following has the least bond angle ?
a) NH3
b) BeF2
c) H2O
d) CH4 .
iii) A metal deficient ionic compound acts as
a) n-type semiconductor
b) p-type semiconductor
c) intrinsic semiconductor
d) none of these.
iv) The ion conductance of an ion depends on its
a) charge only
b) speed only
c) charge and speed
d) charge, speed and hydration.
v) The hybridization of Xe in Xe F2 is
a) sp
b) sp 3 d 2
c) sp 3
d) sp 3 d.