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Q. What are the requirements of drinking water? Explain various methods used for the sterilization of water for municipal supply. ANS. Requirements of drinking water: The e
give the melting temperature values of group 2 elements
Shielding of proton by electrons
Effects of substituents on the acidity of phenols: Existence of electron attracting group, (for example -NO 2 , -X, - NR + 3 , -CN, -CHO, -COOH) on the benzene ring increases
what will you observe if you freeze water at 4 degree celcious
Q. Define homogeneous mixture ? A homogeneous mixture is one which has a constant composition throughout. By mixed sugar in water you create a homogeneous mixture. A homogeneo
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how to determine the concentration of citric acid given that it reacts with sodium hydroxide
Nuclei contain uncharged neutrons and positively charged protons; these two particles with about the same mass are known as nucleons. The number of protons is the atomic number of
PHOSPHORUS, ARSENIC AND ANTIMONY The bigger elements in the same group (15) as nitrogen are usually known as 'pnictogens' and their compounds with metals as 'pnictides'. Althoug
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