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During a flame test why is calcium''s flame not persistent, while that of strontium is?
Ans) Because it does not have many ions as compared to the Strontium. It is the ions which produce color.
Amongst the following covalent bonding is found in: (1) Sodium chloride (2) Magnesium chloride (3) Water (4) Brass Ans: Water
In the anaerobic fermentation of grain the yeast Saccharomyces cerevisiae digests glucose from plants to form the products ethanol and propenoic acid by the following overall react
The allylic carbons are indicated with an asterisk (*).
explain ion-exchange process for slution of hard water
Aromaticity or aromatic character The characteristic behaviour of aromatic compounds is termed as aromaticity. Aromaticity is due to the extensive delocalisation of p-electron
When is fresh produce to harvest? Optimum quality of fruits and vegetables is obtained only when they are harvested at the optimal stage of maturity. A critical time for
Q. What are the Physical Properties of Nitric Acid? Ans. Nitric acid (HNO 3 ) may be prepared by heating sodium nitrate with sulfuric acid: NaNO 3 + H 2 SO 4 --> HNO
The following information is available for the extraction of Cu2+ into CCl4 with dithizone: KD,c = 7 ´ 104; b = 5 ´ 1022; Ka,HL = 3 ´ 10–5; KD,HL = 1.1 ´ 104; n = 2. What is the ex
properties and uses of glycol?
how many elements are discovered
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