What is voltage? ?? What type of of show voltage. ?? Practillay how's voltage?
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What is the Taxonomy ?
Which of the following characteristics is not-shown by hydrogen? 1 It burns in air to form water 2 It supports combustion 3 It combines with almost all the metals forming hydrides 4 None of these
Rubber is coagulated from latex by adding 1 Hydrochloric acid 2 Acetic acid 3 Sulphuric acid 4 Carbonic acid
which among the followings is found chlorophyll ?
Ozone attacks 1 Mercury and silver 2 Copper 3 Silver and iron 4 None of these
What are soaps? 1 Salts of silicates 2 Esters of heavy fatty acids 3 Sodium or potassium salts of heavier fatty acids 4 Mixture of glycerol and alcohols
What is the Organic Evolution ?
The first synthetic fiber made by man was 1 Rayon 2 Nylon 3 Polyester 4 Terycott
what are the advantages and disadvantages of empirical knowledge?
what are the advantages of interrupt and exception?
When was the first american rocket launched?
Which of the following is a chemical change? 1 Oxidation 2 Reduction 3 Sublimation 4 Decomposition