IITJEE REVISION 🚀 💯
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70) The green colour produced in the borax bead test of a chromium(III) salt is due to-
[JEEAdv-2019]
65)Sodium hydrogenCarbonate and calcium hydroxide are respectively:
(64)Which of the following magnetic properties do alkaline earth metals exhibit?
(63) Which superoxide of the following alkali metals is used as an air purifier in spacecraft?
(61) Which alkaline earth metal is a component of Chlorophyll?
(58) Which of the following as a Process to prepare washing soda?
(55) Which of the following alkali metal cannot form superoxide?
(54) Which of the following as a chemical formula of Glauber’s salt?
53) Compound of sodium used for mercerizing of cotton fabrics and for preparation of pure fat and oils.
52) Mark the correct order of amount of elements found in human body.
