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Electronic configuration of H- is:
(1) 1s0
(2) 1s1
(3)1s2
(d) 1s1, 2s1
Ans: 1s2
Question: (i) Differentiate between ionic, metallic, covalent and dipole-dipole bonds. Provide examples in each case. (ii) With regard to electronic con?guration, what do a
Which of the following compound has electrovalent linkage: (1) CH 3 Cl (2) Nacl (3) CH 4
Why are they (Lanthanides and Actinides) called Inner Transition Elements?
briefly explain priming and foaming
General Tests of Esters (a) Esters has sweet smell (b) Esters is neutral towards litmus (c) A pink colour is developed while one or two drops of phenolphthalein are adde
It is a phenomenon in which compounds have same moleculer formula but different structural formula due to which they posses different physical and chemical properties.
Define Colligative Properties of A Dilute Solution? The colligative properties of a solution are usually considered to be: 1. Freezing-point depression: the decrease in the
What is water?
mechanism for the enzyme-catalyzed
Which sample is better to use, bigger sample or smaller sample?
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