JEE Main || Physical Chemistry || Super Quiz 11 for JEE & BITSAT Exams

Question 1

Question : Is the orbital of hydrogen atom 3p_x?
STAT1: The radial function of the orbital is

STAT 2: The orbital has 1 radial node & 1 angular node.

Question 2

After losing a number of alpha and beta-particles. ₉₂U²³⁸ is changed to ₈₂Pb²⁰⁶. The total number of alpha-particles lost in this process is?

Question 3

The half-life of Palladium-100 is 4 days. After 12 days a sample of Pd-100 has been reduced to a mass of 4.00 mg. What is the mass 8 weeks after the start? Starting mass is 32g

Question 4

10 moles of a mixture of hydrogen and oxygen gases at a pressure of 1 atm at constant volume and temperature, react to form 3.6 g of liquid water. The pressure of the resulting mixture will be closest to

Question 5

Specific conductance of 10^–4 M n-Butyric acid aqueous solution is 1.9 × 10^–9 S m^–1. If molar conductance of n-Butyric acid at infinite dilution is 380 × 10^–4 S m² mol^–1, then K_a for n-Butyric acid is:

Question 6

Aluminium reduces manganese dioxide to manganese at high temperature. The amount of aluminium required to reduce one gram mole of manganese dioxide is

Question 7

An organic compound crystallizes in an ortho rhombic system with two molecules per unit cell. The unit cell dimensions are 12.05, 15.05 and 2.69Å. If the density of the crystal is 1.419 g cm^-3, then molar mass of compound will be

Question 8

Which curve shows adsorbtion variation with pressure at constant temperature.

Question 9

Three lawn chairs, one made up of aluminium (heat capacity=.90 J/K-g), one of iron (heat capacity=.45 J/K-g) and one of tin (heat capacity=.60J/K-g) are painted of the same colour. On a sunny day which chair will be the hottest to sit?

Question 10

At 5 × 10⁵ bar pressure density of diamond and graphite are 3g/cc and 2g/cc respectively, at certain temperature ‘T’. Find the value of ∆U – ∆H for the conversion of 1 mole of graphite to 1 mole of diamond at temperature ‘T’: