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If n= 3 , then the value of which is incorrect:
(1) 0
(2) 1
(3) 2
(4)3
Ans: 3
Which of the following compounds is ionic: (1) Kl (2) CH 4 (3) Diamond (4) H 2 Ans: Kl
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Acid dyes: These are commonly salts of sulphonic acids and can be helpful to silk, wool and nylon. The presence of sulphonic acid group creates them water soluble. These dyes a
is (NH4)2S react with HNO3?
The number of electrons in [ 40 19 k ] -1 is: (1) 19 (2) 20 (3)18 (4)40 Ans: 40
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Types of rocket propellants: Depending on the physical state, propellants can be categorized as: a. Hybrid propellants b. Liquid propellants c. Solid propellants
Explain cesium fluoride Compound (2), cesium fluoride, would be most likely to exist as an ionic species, due to Cs and F come from opposite corners of the periodic table.
Q. Define Elements and Compounds? Pure substances are categorized into two categories that are elements and compounds. An element is a substance that can't be separated into
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