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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.
Q. Show the basic Characteristics of Organic Compounds? Ans. Almost all organic compounds contain the elements of hydrogen and carbon. These compounds often contain
name the easiest method of obtaining diesel from a mixture of petrol and diesel.
Out of the following, which compound will have electrovalent bonding: (1) Ammonia (2) Water (3) Calcium chloride (4) Chloro
Quantitative analysis by Flame Photometry?
Q. Show the Liquation in purification of metals? Crude tin, bismuth and lead are purified by liquation. In this process, the impure metal is placed at the top of a sloping hear
A 200g golf ball is moving with a speed of 5 m per hour. The associated wave length (h = 6.625 x 10 -34 J sec)is: (1) 10- 1 0 m (2) 10 -20 m
calculate the voltage of the cell mg/mg+//cd2+/cd at 250c.when[cd2+]=7*10-11 M,[mg2+]=1.0M and standerd electrode potential=1.97V.
Q. What is Diborane? The chemistry of diborane has aroused considerable interest because of its usefulness in many synthetic reactions and also because the elucidation of its s
Q. How to produce Nitrogen on Industrial Level? Ans. Nitrogen is produced by the fractional distillation of liquid air. Air is cooled to liquefy it. The liquid is then all
An organic compound is any member of a large class of chemical compounds which molecules have carbon and hydrogen; thus, carbides, carbonates, carbon oxides and elementary carbon
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