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Tests for acetone - Legal test
(a) Legal's test: while a few drops of prepared freshly sodium nitroprusside and sodium hydroxide solution are added or mixed to an aqueous solution of acetone, a wine colour is acquired that changes to yellow on standing.
Explain and Define standard feat of formation Ans) The amount of heat liberated of absorbed when single mole of compound is formed in its standard state from its elements in the
All the elements of Group 13 form trioxides also known as sesquioxides of the formula, M 2 O 3 . Thallium forms stable Tl 2 0 also. The basic character of oxides increases down th
The angular momentum of an electron depends on: (1) Principal quantum number (2) Azimuthal quantum number (3) Magnetic quantum number (4) All of these Ans: Azimutha
Ninhydrin test- test of proteins Ninhydrin test : This test is specified by all proteins. While a protein is boiled along with a dilute solution of ninhydrin, a violet colour i
Calculate the pH of 0.100 L of a buffer solution that is 0.22M in HF and 0.53M in NaF
If 0.5 mol of BaCl 2 is mixed with 0.20 mol of Na 3 PO 4 , the maximum amount of Ba 3 (PO4) 2 that can be formed is 3 BaCl 2 + 2 Na3PO 4 = Ba 3 (PO4) 2 + 6NaCl Here cle
(a) Starting from a sample of chromate ore, how is potassium dichromate prepared? Explain all the steps included with chemical equations. (b) Write the balanced chemical equatio
what is chemical properties of p block elements
How many unpaired electrons are present in cobalt [Co] metal: (1) 2 (2) 3 (3) 4 (4) 7 Ans: 3
Aromaticity or aromatic character The characteristic behaviour of aromatic compounds is termed as aromaticity. Aromaticity is due to the extensive delocalisation of p-electron
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