School Name: Himalaya Public School, Sector 13, Rohini, Delhi 110085 India
Time: 4o minutes
Class: 11th class
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
- the threshold wavelength
- the threshold frequency
- 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:
- Charles law
- Law of Multiple proportions
- Boyle’s law