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The tendency to form electrovalent bond is largest in
(1) A
(2) B
(3) C
(4) D
Ans: c
The value of the energy for the first excited state of hydrogen atom will be: (1) - 13.6 ev (2)- 3.40 eV (3) -1.51eV
The ratio between the neutrons in C and Si with respect to atomic masses 12 and 28 is: (1) 2 : 3 (2) 3 : 2 (3) 3 : 7 (4) 7 : 3 Ans: 3 : 7
Why the density of carbonylcompounds is as same as water?
Addition catalysed by base - Aldehydes and Ketones In the existence of a base one equivalent of an alcohol reacts along with only one equivalent of the carbonyl compound. The p
some structures containing polyfunctional groups
Q. How do you determine the oxidizing or reducing agent? Ans. A substance that oxidizes another substance is called an oxidizing agent. One that reduces another substance
how condensation being done??
sodium prepration
Thin layer chromatography (TLC) Detection of excessive levels of one or more amino acids in blood plasma or in urine is often crucial for diagnosis of a group of genetic (inheri
Credit Cards Credit cards are offered by banks, as well as other institutions such as credit unions. There are numerous credit cards currently available in the market, each wi
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