COMEDK-UGET SERIES Chemistry
Some Basic Concepts Of Chemistry
17 previous year questions.
Volume: 17 Ques
Yield: Medium
High-Yield Trend
2
2022 1
2014 3
2012 2
2011 2
2010 3
2009 1
2008 2
2007 1
2005 Chapter Questions 17 MCQs
01
PYQ 2005
medium
chemistry ID: comedk-u
The amount of calcium carbonate that reacts with 500 cc of 0.5 N hydrochloric acid is
1
50 g
2
25 g
3
12.5 g
4
100 g
02
PYQ 2007
medium
chemistry ID: comedk-u
0.3 g of an acid is neutralised by 40 of 0.125 N NaOH. Equivalent mass of the acid is
1
60
2
45
3
30
4
63
03
PYQ 2007
hard
chemistry ID: comedk-u
5 g of completely reacts with
1
36.4 g of HCl
2
3.65 g of HCI
3
0.365 g of HCI
4
7.30 g of HCI.
04
PYQ 2008
medium
chemistry ID: comedk-u
Mass of acetic acid required to neutralize 100 cc of 0.1 N NaOH solution is
1
0.6 g
2
1.2 g
3
2.4 g
4
1.8 g
05
PYQ 2009
medium
chemistry ID: comedk-u
The standard temperature used in thermo- chemical calculations is
1
273 K
2
298 K
3
297 K
4
303 K
06
PYQ 2009
medium
chemistry ID: comedk-u
0.5 g of an acid is neutralized by 40 cc of 0.125 N NaOH. The equivalent mass of the acid is
1
50
2
100
3
40
4
80
07
PYQ 2009
medium
chemistry ID: comedk-u
25 mL of 0.08 N Mohr's salt solution is oxidised by 20 mL of in acidic medium. The mass of Mohr's salt present in 500 cc is
1
3.96 g
2
15.68 g
3
39.6 g
4
39.2 g
08
PYQ 2010
medium
chemistry ID: comedk-u
In a titration, 25 of 0.1 N oxalic acid solution requires 20 of sodium hydroxide for complete neutralization. The mass of sodium hydroxide in 250 solution is
1
12.5 g
2
1.25 g
3
0.125 g
4
125 g
09
PYQ 2010
medium
chemistry ID: comedk-u
Dulong and Petit's law (At. mass Specific heat = 6.4) is valid only for
1
solids
2
liquids
3
gases
4
plasma state.
10
PYQ 2011
medium
chemistry ID: comedk-u
Equivalent and molecular masses are same in
1
Mohr's salt
2
potassium permanganate
3
potassium dichromate
4
oxalic acid.
11
PYQ 2011
medium
chemistry ID: comedk-u
12 g of Mg with excess of HCI at NTP gives
1
2
3
4
12
PYQ 2012
medium
chemistry ID: comedk-u
Number of atoms in 560 of oxygen at S.T.P. is
1
2
3
4
13
PYQ 2012
medium
chemistry ID: comedk-u
The volume of (in ) liberated at S.T.P. when 1.06 g of anhydrous sodium carbonate is treated with excess of dilute HCl is [atomic mass of Na= 23]
1
112
2
224
3
56
4
2240
14
PYQ 2012
easy
chemistry ID: comedk-u
100 mL of N/5 HCl was added to 1 g of pure What would remain after the reaction?
1
0.5 g of of
2
Neither nor HCI
3
50 mL of HCI
4
25 mL of HCI
15
PYQ 2014
medium
chemistry ID: comedk-u
Density of solution of is The mass of the solvent in the solution is
1
2
3
4
16
PYQ 2022
medium
chemistry ID: comedk-u
Which of the following is a false statement?
1
Methoxymethane has higher boiling point than ethanol.
2
Alcohols are more soluble in water than hydrocarbons of comparable molecular mass.
3
ortho- and para-nitrophenols are more acidic than phenols.
4
Phenol is more acidic than alcohol.
17
PYQ 2022
medium
chemistry ID: comedk-u
Which of the following compounds does not exist?
1
2
3
4
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