What are fuel cells and reactions takes place in it?, In recent years, the ...

In recent years, the scientists have designed the cells which convert chemical energy of a fuel directly into electrical energy. These cells are called fuel cells. These are the vo

The wave number associated with this light, The frequency of a wave of ligh...

The frequency of a wave of light is 12x 10 14 s -1 .   The wave number associated with this light is: (1) 5x10 -7 m                        (2)  4x 10 -8 cm -1

Ionic bond,

Structure of dna and rna - biomolecules, Structure of DNA and RNA The s...

Structure of DNA and RNA The sequence of bases along with the DNA and RNA chain makes its primary structure that controls the particular properties of the nucleic acid. An RNA

Preparations of alkanes, How alkanes are prepaired?

How alkanes are prepaired?

Convertion, convert km to m

convert km to m

What is tracers?, In the study of mechanisms of various chemical reactions,...

In the study of mechanisms of various chemical reactions, Deuterium and Tritium are used as tracers.

Explain Chemical properties of f-block element, Q. Chemical Properties of f...

Q. Chemical Properties of f-block element? The lanthanides are silvery-white, highly electropositive and reactive metals. They all react slowly with cold water and quickly on h

How to evaluate mass number, Q. How to evaluate mass number? An isotope...

Q. How to evaluate mass number? An isotope of an element is recognized by its mass number which is the sum of the number of protons and neutrons in the atom's nucleus. Mas

A metal surface is exposed to solar radiations, A metal surface is exposed ...

A metal surface is exposed to solar radiations: (1) The emitted electrons have energy less than a maximum value of energy depending upon frequency of incident radiations