WorksheetsChemistry Quiz
Total questions: 19
Worksheet time: 12mins
Identify the substrate 'S' in the following reaction.
A
B
C
D
Identify the correct decreasing order of boiling point for hydrides of halogens.
HF>HCl>HBr>HI
HI>HBr>HCl>HF
HF>HI>HBr>HCl
HI>HF>HBr>HCl
Find the rate of following reaction if concentration of increases to in 100 seconds.
1.3×10−5 moldm−3 s−1
1.3×10−3 moldm−3 s−1
NO2 5.2×10−3 M
4.0×10−5 moldm−3 s−1
2N2O5(g)→4NO2(g)+O2(g)
Which of the following net cell reaction takes place in a galvanic cell containing copper electrode and standard hydrogen electrode?
Cu+2(aq)∣Cu(s)=+0⋅34V
Cu(s)+2H+(aq)⟶Cu+2(aq)+H2(g)
H2(g)+Cu+2(aq)⟶2H+(aq)+Cu(s)
Cu(s)+H2(g)⟶Cu+2(aq)+2H+(aq)
Cu+2(aq)+2H+(aq)⟶Cu(s)+H2(g)
Arrange the following equimolar solutions according to increasing order of osmotic pressure [Assume complete ionisation]
KCl
BaCl2
AlCl3
Al2(SO4)3
The rate law for the reaction at is given by rate. Calculate the rate of reaction if rate constant at same temperature is A+B→C.
0.25 moldm−3 s−1
0.5 moldm−3 s−1
0.75 moldm−3 s−1
1.25 moldm−3 s−1
A conductivity cell containing solution develops resistance at. Calculate the electrical conductivity of solution at same temperature if the cell constant is.
0.653 cm−1
1.3×10−4 Ω−1 cm−1
1.5×10−4 Ω−1 cm−1
1.7×10−4 Ω−1 cm−1
Which from following equation is correct for relation between standard cell potential and equilibrium constant?
E0cell = log10K n 0.0592
E0cell = 0.0592 n log10K
Ecell = 0.0592 n log10K
Ecell = log10K n 0.0592
What is the freezing point of 1 molal aqueous solution of a non-volatile solute?
−0.93 ∘C
−2.43 ∘C
−3.72 ∘C
−1.86 ∘C
Identify CORRECT decreasing order of solubilities of alcohols, alkanes and amines in water having comparable molar mass.
Which of the following has dipole-induced dipole interaction as inter molecular force?
A) Unipositive ions have inert gas configuration.
B) Compounds of unipositive ions are paramagnetic.
C) These form colourless compounds in +1 state.
D) These have high negative values of standard reduction potential.
Calculate the volume of unit cell if an element having molar mass that forms bcc unit cells.
1.17×10−23 cm3
4.79×10−23 cm3
3.31×10−23 cm3
2.33×10−23 cm3
A monobasic acid is dissociated in its 0.02 M solution. Calculate the dissociation constant of acid.
5%
2×10−2
4×10−4
5×10−5
An ideal gas is compressed from to at a constant pressure 2 bar. Calculate the work done by gas during compression.
1.0 kJ
1.5 kJ
1.8 kJ
2.0 kJ
A certain sample of gas has a volume of at one atmosphere pressure and 273.15 K. What is the volume of gas at at same pressure?
0.2 L
2.703 L
0.4 L
5.406 L
Which from following molecules has two lone pair of electrons in valence shell of its central atom?
SO2
NH3
H2O
SF4
The most basic hydroxide among the following is-
Pr(OH)3 (Z=59)
Sm(OH)3 (Z=62)
Ho(OH)3 (Z=67)
La(OH)3 (Z=57)
Which element from following belongs to oxygen family?
Ba
Se
Rb
Ca
Which of the following travels with the speed of light?
α
β
γ
