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Write a feature which will distinguish a metallic solid from an ionic solid.
a) Explain 'order of a reaction'.
b) What is an emulsion?
Why do we have Li2Co3 while other akalie metals behaviour
The electron pair which forms a bond between two similar non-metallic atoms will be: (1) Dissimilar shared between the two (2) By complete transfer from one atom to other
bomb calorimeter
The electron density between 1s and 2s orbital is : (1) High (2) Low (3) Zero (4)None of these Ans:Zero
Which of the following is isoelectronic with carbon atom: (1) Na + (2) Al +3 (3) O 2- (4)N + Ans: N +
The third line in Balmer series corresponds to an electronic transition between which Bohr's orbits in hydrogen: (1) 5 → 3 (2) 5 → 2 (3) 4→ 3
The only nonradioactive isotope of fluorine has 9 protons and 10 neutrons. a. What is its mass number. b. Write the full symbol of this atom.
(a) What is hardness of water? What do you understand by temporary and permanent hardness? OR Explain tempora
convert benzene to benzaldehyde
#what are the types of mixtures
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