COMEDK-UGET SERIES Chemistry
Group 1 Elements
6 previous year questions.
Volume: 6 Ques
Yield: Medium
High-Yield Trend
1
2022 1
2014 1
2011 1
2010 1
2009 1
2005 Chapter Questions 6 MCQs
01
PYQ 2005
medium
chemistry ID: comedk-u
In the manufacture of ordinary glass the substance used is
1
baking soda
2
caustic soda .
3
soda ash
4
soda lime.
02
PYQ 2009
medium
chemistry ID: comedk-u
Electrolysis of brine gives a mixture of
1
2
3
4
03
PYQ 2010
medium
chemistry ID: comedk-u
In the manufacture of NaOH, by electrolysis of an aqueous solution of sodium chloride, the cathode and anode are separated by using a diaphragm because
1
it prevents the reaction between and
2
it increases the yield of products?
3
it prevents the mixing of and
4
it prevents the reaction between and .
04
PYQ 2011
medium
chemistry ID: comedk-u
The decarboxylating agent is
1
sodamide
2
sodium peroxide
3
sodalime
4
sodium hydride.
05
PYQ 2014
medium
chemistry ID: comedk-u
Sodium dissolves in liquid to give a deep blue solution. This is due to
1
ammoniated
2
ammoniated
3
formation of pair
4
amrnoniated electrons
06
PYQ 2022
medium
chemistry ID: comedk-u
Which of the following is highly basic?
1
Diphenylamine
2
Benzylamine
3
Aniline
4
Triphenylamine