Question

i) The difference between position of the absorption band for a given type of hydrogen atom and the position of the peak for TMS is called --------.

ii) Hemoglobin consists of -------- units of myoglobin.

iii) $^{14}_{7}N + ^{4}_{2}He \rightarrow ? + ^{1}_{1}H$

iv) EAN of Cr in $Cr(CO)_6$ is --------.

Select the correct alternative:

i) Those nuclear reactions in which Q-value is positive are called as-

ii) Oxygenation of hemoglobin is favoured at -------- pressure.

iii) Silicones are used as a -

iv) Planck's quantum theory of radiation explains-

• A. Exoergic reactions
• B. Endoergic reaction
• C. Both of these
• D. None of these

Answer 1

Answer: (A)

Exoergic reactions

Answer 2

A nuclear reaction with a positive Q-value releases energy and is called an exoergic reaction. An endoergic reaction has a negative Q-value and absorbs energy.