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Safety in Preparation of Preparation of trimethyl: 1 Use a round-bottomed flask equipped with a Claisen head (lagged with glass-wool), Quickfit thermometer (very expensive!)
Q. Occurrence of group 13 element? Both boron and aluminium have a high affinity for oxygen, so neither of them is found native. Boron occurs principally in the earth's crust a
Askccomparison between caulometry and electrogravimetry question #Minimum 100 words accepted#
An isostere is: (1) NO -2 and O 3 (2) No -2 and PO 3- 4 (3) CO 2, N 2 O, NO - 3 (4)Clo - 4 and OCN - Ans: NO -2
Bakelite: It is thermosetting plastics which are most widely used and the most important plastics. Preparation: It is formed by condensation reaction of phenol an
what is laws of chemical combination
Q. What are the Chemical Properties of Halogens? Ans. he halogens have 7 valence electrons in their outermost shell. Note that 7 is one electron short of the octet.
transition elements form coloured compound. Why?
what is water gas and how is it prepared?
The color in KMnO4 arises from an electronic transition, but it is actually not a d-d ... When the light is reflected (or transmitted) it is missing the frequencies of the light ab
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