Category: Chemistry

Explain science chemistry

Chemistry ek bahut bada subject hai. Kya aap Atomic Structure, Chemical Reactions, ya Periodic Table ke baare mein

Method used for separation of mixture of products obtained in the following reaction is

In liquids particles are loosely packed,it has weaker interparticle forces than solids,it has no definite shape nor a definite volume,particles of liquids can slide over each other and allows force,liquids has no effect of pressure and are highly incompressible.

The objectives of the question were to analyze to role of organic chemistry in our daily life.

Tell 2-3 differences for 5 marks.

1. English language belongs to which language family? A. Indo-European B. Dravidian C. Sino-Tibetan D. Semitic Ans: A 2. English is a member of which group? A. Germanic B. Celtic C. Latin D. Greek Ans: A 3. Who wrote The Story of English? A. Robert McCrum B. William Shakespeare C. John Milton D. Francis Bacon…

H2O, H2SO4 and Mgcl2?

Q.A element whose mass number is 23 and number of protons is 11. Find. (i) The number of electrons. (ii) Name of the element. Q. Write the electronic configuration of an element whose number of protons is 31. Q.Calculate the number of protons and neutrons if the number of electrons are 15.

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