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Explain the following observations:
(i) Generally there is an increase in density of elements from titanium (Z = 22) to copper (z =29) in the first series of transition elements.
(ii) Transition elements and their compounds are generally found to be good catalysts in chemical reactions.
In what aspect lithium resembles magnesium ?
Q. Describe the foaming properties? Foods like meringue, ice cream and beer contain foams. A number of foods possess good foaming properties on account of the proteins they con
advantages
Q. How can we obtain Pure alumina? Pure alumina is obtained from bauxite ore. Powdered bauxite mineral is heated in a concentrated solution of sodium hydroxide under pressure w
Classification of polymers - Elastomers The polymers which have elastic character such as rubber (a material that can return to its unique shape after stretching is said to be
Chemical formula for calcium pyrophosphate is ca 2, P 2 O 1. The formula for ferric pyrophosphate will be: (1) Fe 3 (P 2 O 1 ) 3
What is the purpose of zone refining? In a binary phase diagram (pressure omitted), what is the maximum number of phases which can coexist for at least one degree of freedom?
how many elements are discovered
what is the principal of radiometric titration
What is condensation polymer?
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