Atoms are composed of
1 Electrons only
2 Protons only
3 Electrons and protons
4 Electrons and nuclei
What are vitamins ? describe different kinds of vitamins
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Why we use nhexane inplace of hexane in mobilepase preparation
Which of the following reactions is used for increasing the number of carbon atoms in a chain? 1 Substitution reaction 2 Wurtz reaction 3 Friedel – Crafts reaction 4 Cannizzaro’s reaction
List and explain two instances of Correlation Science with Life Situation
0 Answers Mahatma Gandhi University,
why is it important that sex cells have half the number of Chromosomes as body cells?
what would be the fate of life on earth 10 yrs down the lane.
Which of the following fertilizers leaves acidic residue? 1 Urea 2 Ammonium phosphate 3 Ammonium sulphate 4 None of these
The recent atomic weight scale is based on 1 1H1 2 1H2 3 6C12 4 8O16
The filament of an electric bulb is made of 1 Iron 2 Nichrome 3 tungsten 4 Graphite
9 Answers Germanium, Google, Graphite India, Tungsten,
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Which of the following substances exhibit the property of sublimation? 1 Ice 2 Wax 3 Camphor 4 Ethyl alcohol