Assertion : Smoking makes oxgyen less available to the body
Reason : In presence `CO2,O_2` binds less with haemoglobin.

Given below are assertion and reason. Point out if both are true with reason being correct explanation (A), Both are true but reason is not correct expalantion (B), assertion is true but reason is wrong (C), and both are wrong (D). Assertion. Smoking causes oxygen deficiency in the body Reason: Carbon monoxide when inhaled while smoking, combines with haemoglobin to form chemically stable compound

CO_(2) is transported by haemoglobin as

Assertion are conformers. Reason:- First is less stable than second.

Assertion :- RNA is less stable then DNA. Reason : In RNA'2 - OH group present on every nucleotide.

Assertion : Nitrogen is less reactive than molecular oxygen. Reason: Bond length of N_(2) is shorter than that of oxygen.

Assertion : Nitrogen is less reactive than molecular oxygen. Reason: Bond length of N_(2) is shorter than that of oxygen.

Assertion : Stress is the internal force per unit area of a body. Reason : Rubber is less elastic than steel.

Assertion (A): Potassium is a stronger reducing agent than sodium. Reason (R ): IE of potassium is less than that of sodium.

Assertion :- Haemoglobin can not get saturated with oxygen more than 97% . Reason :- With a rise in PO_(2) , the affinity between O_(2) & haemoglobin also increases.

Assertion : bond angle H2O is less than the normal tetrahedral bond angle. Reason : Lone pair-lone pair repulsion decreases bond angle.