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The atomic number of an element is always equal to:
(1)Atomic weight divided by 2
(2)Number of neutrons in the nucleus
(3)Weight of the nucleus
(4)Electrical charge of the nucleus
Ans: Electrical charge of the nucleus
Uses of Alkenes (i) Alkenes are used for the manufacture of polythene - a plastic material; (ii) Alkenes are used for artificial ripening of fruits; (iii) Alkenes are us
The magnetic quantum number for valency electrons of sodium is: (1) 3 (2) 2 (3) 1 (4) 0 Ans: 0
What will be de-Broglie wavelength of an electron moving with a velocity of 1.2 x 10 5 ms -1 : (1) 6.068x 10 -9 (2) 3.133 x 10 -37 (3) 6.626x 10 -9
ionic equation for potassium dichromate and potassium manganate
to study the presence of aroma,taste, ph value and tannic acid of different tea leaves
verify that less than 5% of the reactants have been consumed
structure of Bicyclo(3.3.1)non-1-ene
describe the steps necessary in preparing a standard solution of 1.0 molar NaOH
A water solution have 64% Na 2 S 2 O 2 together with 1.0% soluble impurity. Upon cooling to 5°C, Na 2 S 2 O 2 ·5H 2 O. crystallizes out. The solubility of this hydrate is 1.35
The mathematical expression used for expressing the rates of chemical reaction is given below by taking two different set of chemical reactions. Reactions involving same s
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