# Which one of the following equations represents the variation of viscosity coefficient (η) with temperature (T)

1.  η=Ae-E/RT

2.  η=AeE/RT

3.  η=Ae-E/KT

4.  η=Ae-E/T

4

η=AeE/RT

Explanation :
No Explanation available for this question

# A gaseous mixture contains 56g of N2,44g of CO2 and 16g of CH4.The total pressure of th mixture is 720 mm Hg.The partial pressure of CH4 is:

1.  180mm

2.  360mm

3.  540mm

4.  720mm

4

180mm

Explanation :
No Explanation available for this question

# The weight in grams of a non-volatile solute (M.wt:60) to be dissolved in 90 g of water to produce a relative lowering of vapour pressure of 0.02 is

1.  4

2.  8

3.  6

4.  10

4

6

Explanation :
No Explanation available for this question

# The experimentally determined molar mass of a non-volatile solute, BaCl2 in water by Cottrell’s method, is

1.  equal to the calculated molar mass

2.  more than the calculated molar mass

3.  less than the calculated molar mass

4.  double of the calculated molar mass

4

less than the calculated molar mass

Explanation :
No Explanation available for this question

# The number of moles of electrons required to deposit 36 g of Al from an aqueous solution of Al(NO3)3 is (At. wt. of Al = 27)

1.  4

2.  2

3.  3

4.  1

4

4

Explanation :
No Explanation available for this question

# The energy of the electron in the hydrogen atom is given by the expression:

1.  -e2/r2

2.  -n2h2/2π2z2e4m

3.  -2π2z2e4/n2h2

4.  nh/2π

4

-2π2z2e4/n2h2

Explanation :
No Explanation available for this question

# The emf (in V) of a Daniel cell containing 0.1 M ZnSO4 and 0.01 M CuSO4 Solutions at their respective electrodes is

1.  1.10

2.  1.16

3.  1.13

4.  1.07

4

1.07

Explanation :
No Explanation available for this question

# The rms velocity of an ideal gas at 270C is 0.3m/s.Its rms velocity at 9270C(in m/s) is

1.  3.0

2.  2.4

3.  0.9

4.  0.6

4

0.6

Explanation :
No Explanation available for this question

# Which one of the following elements, when present as an impurity in silicon makes it a p-type semiconductor

1.  As

2.  P

3.  In

4.  Sb

4

In

Explanation :
No Explanation available for this question

# Which one of the following statements is correct for the reaction CH3COOC2H5(aq) +NaOH(aq) →CH3

1.  Order is two but molecularity is one

2.  Order is one but molecularity is two

3.  Order is one but molecularity is one

4.  Order is two but molecularity is two

4