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Which of the following hydrides are ionic: (1) CaH 2 (2) BaH 2 (3) SrH 2 (4) BeH 2
name an artificial fertilizer or fertilisisers which farmer can use to increase the supply of nitrate,phosphate and potassium to their crops.what are the function of ions?
Unsaturated dicarboxylic acids The molecular formula of the simplest unsaturated dicarboxylic acid is HOOC.CH=CH.COOH This formula, however represents two chemical compounds, m
Which one of the following is considered as the main postulate of Bohr's model of atom: (1) Protons are present in the nucleus (2) Electrons are revolving around the nucleu
Ionic bonds are usually formed by combination of elements with: (1) High ionisation potential and low electron affinity (2) Low ionisation potential and high electron affini
Write the maximum possible coordination number of an atom in an hcp crystal structure of an element? Illustrate the formula relating pressure of a gas with its mole fraction in
Strategy 3 Two levels of wheat flour 3960g and 3940g and two levels of baking powder 60g and 40g are selected to be tested. In all trials the percentages of A, B and C are fix
The molar concentration of an HCl solution is 12.4 mol/L. How many moles of Hcl is in 1.50 L of HCl solution
please tell the observation & inference, when ammonium phosphate (NH4)3PO4 undergoes charcoal cavity test & cobalt nitrate test.....
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