NCERT 11th Class CBSE Chemistry Monthly Test 2019

School Name: Himalaya Public School, Sector 13, Rohini, Delhi 110085 India
Time: 4o minutes
Marks: 20
Class: 11th class
Date: 19/08/2019

NCERT 11th Class CBSE Chemistry Monthly Test 2019

Question: 1. What is the value of Planck’s Constant in SI Unit.

Question: 2. Name the theory which relates electric field and magnetic field perpendicular to other.

Question: 3. Define wave number of electromagnetic wave.

Question: 4. What is the value of log?

Question: 5. Which law related pressure and tump at Constant Volume?

Questions 6 to 8 Carry 2 Marks each.

Question: 6. Calculate the wavelength and frequency whose period is 2.0 × 10^-10 second?

Question: 7. In terms of Charles law, explain why – 273º C in the lowest temperature?

Question: 8. Find (a) the total number and (b) the total mass of protons in 34 mg of NH₃ at STP.

Questions 9 to 12 Carry 3 Marks each.

Question – 11th Chemistry Monthly Test: 9. The work function for Caesium atom is 1 – 9ev. Calculate

1. the threshold wavelength
2. the threshold frequency
3. If the caesium element is irradiated with a wavelength of 500 nm. Calculate the kinetic energy of the electron (iev = 1.602 × 1o^-19 C)

Question: 10. An ion with mass no 37 possesses one unit of negative charge. If the ion contain 11.1% more neutron than electrons. Find the symbol of ion.

Question – 11th Chemistry Monthly Test: 11. Explain the following law:

1. Charles law
2. Law of Multiple proportions
3. Boyle’s law