The energy change which accompanies the addition of an electron to a gaseous atom is
The energy change which accompanies the addition of an electron to a gaseous atom is A. atomization B.…
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Which of the following elements is a d-block element?
Which of the following elements is a d-block element? A. Calcium B. lron C. Lithium D. Silicon Correct…
An important medical use of nuclear radiations is
An important medical use of nuclear radiations is A. activation analysis B. carbon dating C. radiotherapy D. tissue…
Which of the following elements exhibits the same chemical properties as the atom (frac{35}{17})X? An…
Which of the following elements exhibits the same chemical properties as the atom (frac{35}{17})X? An element with A.…
Which of the following noble gases has electronic structure similar to that of N in…
Which of the following noble gases has electronic structure similar to that of N in NH 3? [(frac{14}{7})N]…
Which of the following alloys does not contain copper? l. Brass II. Bronze III. Steel
Which of the following alloys does not contain copper? l. Brass II. Bronze III. Steel A. l only…
The electron configuration of carbon atom in its excited state is [ 6C]
The electron configuration of carbon atom in its excited state is [ 6C] A. 1s22s 22px12py 1 B.…
Ethanol reacts with excess acidified K2Cr 2O7 to produce
Ethanol reacts with excess acidified K2Cr 2O7 to produce A. ethanal B. ethane C. ethanoic acid D. ethylethanoate…
Dry hydrogen chloride when dissolved in methylbenzene
Dry hydrogen chloride when dissolved in methylbenzene A. turns blue litmus paper red B. turns red litmus paper…
When protein is heated to a high temperature it undergoes
When protein is heated to a high temperature it undergoes A. condensation B. denaturation C. hydrolysis D. polymerization…