Chemistry Test

Result

Chemistry Test - 3

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Weekly Quiz Competition

Question 1
3 / -1

Gabriel phthalimide reaction is used for the preparation of

A
primary aromatic amines

B
primary aliphatic amines

C
secondary aromatic amines

D
All
Question 2
3 / -1

A
2-Methylpropene

B
Styrene

C
Propylene

D
Ethane
Question 3
3 / -1

HCl cannot be used in place of H₂SO₄ in MnO₄ titration, because:

A
HCl will reduce Mohr’s salt or oxalic acid

B
HCl will oxidise Mohr’s salt or oxalic acid

C
HCl will reduce KMnO₄

D
None of these
Question 4
3 / -1

Lactic acid is present in

A
Tears

B
Nasal secretion

C
Saliva

D
Sweat
Question 5
3 / -1

The enthalpy of vaporization of liquid is 30 kJ mol^-1 and entropy of vaporization is 75JK^-1 mol^-1. The boiling point of the liquid at 1atm is ________ K.

A
400.00

B
500.00

C
300.00

D
450.00
Question 6
3 / -1

The compressibility factor is then equal to:

A

B

C

D
Question 7
3 / -1

If λ0 is the threshold wavelength for photoelectric emission, λ the wavelength of light falling on the surface of a metal and m is the mass of the electron, then the velocity of ejected electron is given by

A

B

C

D
Question 8
3 / -1

Which type of overlapping is present in SO₄^–2 molecule

A
s – p

B
pπ - pπ

C
pπ - dπ

D
p - pσ
Question 9
3 / -1

Which one of the following pairs represents the intensive properties

A
Specific heat and temperature

B
Entropy and density

C
Enthalpy and mole fraction

D
Heat and temperature
Question 10
3 / -1

A solution is prepared by dissolving 10 g of a non-volatile solute in 360 g of water. The molar mass in gmol⁻¹ of the solute, if the relative lowering of vapour pressure of solution is 5×10⁻³, is_____________.

A
99.50

B
99.60

C
99.55

D
99.65