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what is the theoretical background of the topic?
20ml of water sample requires 15ml of 0.1mg/l sodium carbonate using phenolphthalein indicator. state the type of acidity and calculate the acidity
Energy difference is maximum between which of the consecutive energy levels in an atom? Ans) According to the line spectrum of hydrogen maximum energy is there between FIRST AND
The covalent compound HCl has the ionic character as: (1) The electronegativity of hydrogen is greater than that of chlorine (2) The electronegativity of hydrogen is equal
Explain Bulking of sand The presence of moisture content to particular extent in sand increases the volume of sand. This is due to the fact that the moisture causes ?lm of wate
In Balmer series of hydrogen atom spectrum which electronic transition causes third line: (1) Fifth Bohr orbit to second one (2) Fifth Bohr orbit to first one (3) Fourth
Why alcoholic acidity express in terms of sulphuric acid
The number of orbitals in the fourth principal quantum number will be: (1) 4 (2) 8 (3) 12 (4) 16 Ans: 16
WHAT IS ENVIRONMENTAL CHEMISTRY?
Q. Describe Molarity and Molality and what is the basic diffrence between Molarity and Molality? The concentration of a solution is usually expressed as molarity (i.e., M). The
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