Water is a compound because
1 It exists as a solid, a liquid or a gas
2 It contains hydrogen and oxygen
3 It contains two different elements joined by chemical bonds
4 It cannot be split up into simpler substances by chemical
means
Answer / guest
(3) It contains two different elements joined by chemical bonds
Is This Answer Correct ? | 8 Yes | 0 No |
Two or more forms of a chemical element having different physical properties but rising to identical chemical compounds are called 1 Allotropes 2 Isotopes 3 Isomers 4 Isotones
How does common salt help in separating soap from the solution after saponification? 1 By decreasing solubility of soap 2 By increasing solubility of soap 3 By decreasing density of soap 4 None of these
Where is the biggest solar telescope in india situated?
Which is india’s largest nuclear research reactor?
Please can someone tell me, how many times during a 12 hour period, do the hands of a clock face opposite each other? I believe its 11. Also, would this be the same, no matter WHAT the starting time? i.e. if the 12 hour period started at 6 o clock, would it still be 11 times? Many thanks for your help.
Which are known as non - luminous irregular nebulae?
In which year, atmospheric observations using balloons started?
atoms are composed of Electrons & Protons or Electrons & Protons ?
why is it important that sex cells have half the number of Chromosomes as body cells?
Brass gets discolored in air because of the presence of which of the following gases in air? 1 Carbon dioxide 2 Oxygen 3 Hydrogen sulphide 4 Nitrogen
Catalytic properties of a substance may be best defined as a phenomenon of 1 Absorption 2 Chemisorption 3 Adsorption 4 None of these
What are the important factors of cosmic rays?