Foxoyo
Hey..!!
Practice
Select topics and difficulty and just practice mcqs.
Topics
Chemical Arithmetic and Volumetric Analysis
Topics
Steel Structure Design
Civil Engineering
User (name or email)
Users
pick difficulty level
all
1
2
3
4
5
number of questions
10
30
50
70
100
Start
Let's practice 30 mcqs on
Chemical Arithmetic and Volumetric Analysis
mcqs by everyone
115 g of pure sodium metal was dissolved in 500 mL distilledwater.
The normality of the solution would be
0.00115 N
0.046 N
0.023 N
0.010 N
The specific heat of metal is 0.16. Its approximate atomic mass weight would be
64
40
32
16
An element, X has the following isotopic composition 200X : 90% ; 199X : 8%; 202X : 2.0%. The weighted average
atomic mass of the naturally occurring element X is closest to
202 amu
201 amu
199 amu
200 amu
A gaseous mixture contains CH4 and C2H6 in equimolarproportion.
The weight of 2.24 litres of this mixture at NTP is
4.6g
2.3g
23g
1.6g
25g of solid dibasic acid is completely neutralised by 25mL of 0.25 molar Ba(OH)2solution.
Molecular mass of the acid is
150
200
100
120
How many litre of oxygen at STP is required to burn 60 g C2H6
8.5 L
11.2 L
22.4 L
22.4 × 7 L
The total number of electrons in 3 g of KH to that in 1.8 g of H2O
double
Triple
Same
one fourth
Four one litre flask are separately filled with the gases hydrogen, helium, oxygen and ozone at the same temperature andpressure.
The ratio of total number of atoms of these gases present in different flask would be
3:2:2:1
1:1:1:1
1:2:2:3
2:1:2:3
The volume of water to be added to 100cm3 of 0.5N H2SO4 to get deci normal concentration is
500 cm3
450 cm3
100 cm3
400 cm3
In Haber process 30 litres of dihydrogen and 30 litres of dinitrogen were taken for reaction which yielded only 50% of the expectedproduct.
What will be the composition of gaseous mixture under the aforesaid conditionin the end
20 litres ammonia, 25 litres nitrogen, 15 litres hydrogen
10 litres ammonia, 25 litres nitrogen, 15 litres hydrogen
20 litres ammonia, 10 litres nitrogen, 30 litres hydrogen
20 litres ammonia, 20 litres nitrogen, 20 litres hydrogen
Mole fraction of solvent in aqueous solution of NaOH having molality of 3 is
0.95
0.3
0.05
0.7
The vapour density of gas is 11.2. The volume of 11.2g of the gas at NTP will be
448.8L
11.2L
1L
22.4L
3g of oxide of a metal is converted to chloride completely and it yielded 5g ofchloride.
The equivalent weight of the metal is
20
3.325
12
33.25
Volume occupied by one molecule of water
(density = 1 g cm–3) is
6.023 × 10–23 cm3
3.0 × 10–23 cm3
9.0 × 10–23 cm3
5.5 × 10–23 cm3
If two compounds have the same empirical formula but different molecular formulae, they must have
same vapour density
different percentage composition
same viscosity
different molecular weights
In order to prepare one litre normal solution of KMnO4, how many grams of KMnO4 are required if the solution is to be used in acidic medium for oxidation
62.0g
31.6g
158g
790g
Volume occupied by one molecule of water
(density = 1 g cm–3) is
Solution
9.0 × 10–23 cm3
6.023 × 10–23 cm3
5.5 × 10–23 cm3
3.0 × 10–23 cm3
The ratio of amount of H2 needed to precipitate all the metal ions from 100ml of 1M AgNO3 and 100 ml of 3M CuSO4 will be
NONE OF THESE
1 : 1
1 : 2
2 : 1
What volume of oxygen gas (O2) measured at 0°C and 1 atm, is needed to burn completely 1 L of methane gas
(CH4) measured under the same conditions
1 L
3 L
2 L
4 L
A solution containing Na2CO3 and NaOH requires 300 mL of 0.1 N HCl using phenolphthalein as anindicator.
Methyl orange is then added to above titrated solution when a further 25 mL of 0.2 N HCl isrequired.
The amount of NaOH present in solution is
1.0 g
1.5 g
0.8 g
2.0 g
Specific volume of cylindrical virus particle is 6.02 × 10-2 cc/gm whose radius and length are 7 Å and 10 Å respectively
If NA= 6.02 ×1023, find molecular weight of virus
3.08 × 103 kg/mol
1.54 × 104 kg/mol
15.4 kg/mol
3.08 × 104 kg/mol
Assuming fully decomposed, the volume of CO2 released at STP on heating 9.85g of BaCO3 ( Atomic mass, Ba=137 ) will be
2.24L
1.12L
0.84L
4.06L
The total number of electrons in 3 g of KHto that in 1.8 g of H2O
Same
one fourth
Triple
double
A molal solution is one that contains 1 mole of a solute in
22.4 litre of the solution
One litre of solvent
1000g of solvent
One litre of the solution
The sulphate of metal M contains 9.87% of M. This sulphate is isomorphous with ZnSO4.7H2O. The atomic weight of M is
11.3
36.3
40.3
24.3
The number of atoms in 0.1 mol of a triatomic gas is (NA=6.02× 1023mol–1)
3.600 × 1023
1.806 × 1023
6.026 × 1022
1.800 × 1022
12 mL of gas is produced at S.T.P. by the action of 4.12 mg of alcohol, ROH, with methyl magnesiumbromide.
The molecular mass of alcohol is
156.0
41.2
82.4
16.0
Percentage of Se in peroxidase anhydrous enzyme is 0.5% by weight
(at. wt. = 78.4) then minimum molecular weight of peroxidase anhydrous enzyme is
15.68
2.136 × 104
1.568 × 104
1.568 × 103
The percentage of P2O5 in diammonium hydrogen phosphate, (NH4)2HPO4 is
23.48
53.78
46.96
71.00
In chemical scale, the relative mass of the isotopic mixture of Oxygen atoms ( O16, O17, O18 ) is assumed to be equal to
16.00
16.002
11.00
17.00
Learn
Correct Attempts
Score
00/00
in
00:00
Javascript is disabled
we serve best when javscript is enabled
Enable