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WorksheetsChemistry Mart Sem 1 set C
Total questions: 10
Worksheet time: 5mins
Balance the redox reaction below in an acidic condition:
Cu + NO3- ⟶ Cu2+ + 2NO
3Cu + 2NO3- + 8H+ ⟶ 3Cu2+ + 2NO + 4H2O
3Cu + 2NO3- + 4H2O ⟶ 3Cu2+ + 2NO
6Cu + 2NO3- + 8H+ ⟶ 6Cu2+ + 2NO + 4H2O
3Cu + 2NO3- + 4H+ ⟶ 3Cu2+ + 2NO
The Balmer series in the hydrogen spectrum is found in
the ultraviolet region
the infrared region
the visible region
the x-ray region
The electronc configuration of element X is.......... 3s2 3p6 3d10 4s2 4p3. This means that the element X is
d-block element
a group 13 element
a group 14 element
a group 15 element
Which of the following compounds can form hydrogen bonds?
CH4
CH3OH
CH3-O-CH3
HCN
Under which set of condition will real gas shows ideal behaviour?
Temperature: Low
Pressure: High
Temperature: High
Pressure: High
Temperature: Low
Pressure: Low
Temperature: High
Pressure: Low
Consider the following reaction:
P + Q ⇌ 2R + S
Which of the following statement is TRUE when the system is at equilibrium?
Both the forward and the reverse reactions have stopped
Neither the forward nor the reverse reaction has stopped
The rate of forward reaction is decreased due to the increase in the rate of the reverse reaction
The sum of the concentration of P and Q must equal to the sum of the concentration of R and S
Which of the following ions reacts as Bronsted-Lowry acid and base?
HCO3-
OH-
CO32-
HCl
Which of the following represent molecular formula and its empirical formula?
Molecular formula: CH4
Empirical formula: CH4
Molecular formula: C2H12
Empirical formula: C2H6
Molecular formula: C4H8
Empirical formula: CnH2n
Which one of the following pair would form a non-polar covalent bond?
Cl and Cl
Ne and Ne
C and O
Which of the following can affect the value Ksp for calcium sulphate?
Change in temperature
Addition of solid CaCl2
Addition of dilute sulphuric acid
