List of top Chemistry Questions on Electromagnetic waves

Identify the de-Broglie expression from the following
A hypothetical electromagnetic wave is show below.
electromagnet
The frequency of the wave is x × 1019 Hz. x = ______ (nearest integer)
Identify the reaction in which hydrogen gas is not liberated
Assertion (A): Silicones are used in surgical and cosmetic plants Reason (R): Silicones have high thermal stability
The electron gain enthalpy (in kJ/mol) of oxygen, sulphur, selenium respectively are
Two statements are given below: I. Sodium hexametaphosphate is used in calgon method for removal of permanent hardness of water II. Lithium forms interstitial hydrides Identify the correct answer
The correct order of reducing power of alkali metals in aqueous solution is
Electromagnetic radiation has electric and magnetic field components. These two components:
A message signal of peak voltage 12 V is used to amplitude modulate a carrier signal of frequency 1.2 MHz. The amplitude of the side bands is: