NTS Chemistry Mcqs Online Test 3

NTS Chemistry Mcqs Online Test 3 Question Answers Start Below

Which specie has unpaired electrons in antibonding molecular orbitals?

O2+2
N2-2
B2
O2-2

Correct!

Wrong!

Which of the following can be used in laptops?

Silver oxide battery
. Fuel cell
. Nickel cadmium cell .
Lead accumulator

Correct!

Wrong!

For a given process the heat changes at constant pressure (qp) and at constant volume (qv) are related to each other as?

qp = qv
qp < qv .
qp > qv
qp = qv / 2

Correct!

Wrong!

For which system does the equilibrium constant Kc has unit of (concentration)-1?

N2+3H2 <=>2NH3
H2+I2 <=>2HI
2NO2 <=> N2H4
. PCI5 <=> PCI3+CI2

Correct!

Wrong!

Solubility product of AgCl is 2.0 x 10-10 mol2 dm-6. Maximum Concentration of Ag+1 ions in the solution is?

2.0 x 10-10 mol dm-3
1.414 x 10-5 mol dm-3
1.0 x 10-10 mol dm-3
1.0 x 10-5 mol dm-3

Correct!

Wrong!

Which of the following solution has the highest boiling point?
 

5.85% NaCl Solution
18.0 % glucose solution
6.0 % urea solution
All have same boiling point

Correct!

Wrong!

18g glucose is dissolved in 90g water the relative lowering in vapour pressure is equal to?

?
5.1
. 6
one/fifty one

Correct!

Wrong!

Which is true about Zn-Cu galvanic cell?

Reduction occurs at anode
K+ ion transfer from salt bridge to left beaker of ZnSO4
Oxidation occurs at cathode
Anode is negatively charged

Correct!

Wrong!

Stronger is the oxidizing agent greater is the?

. Oxidation potential
Redox potential
e.m.f of cell
standard reduction potential

Correct!

Wrong!

Atomic radius can be determined by?

X - ray diffraction
Spectrophotometer
Optical microscope
Electron microscope

Correct!

Wrong!

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