Assertion : The `-As=As-` linkage present in arshphenamine ( a Salvarsan drug ) resembles the `-N=N-` linkage present in azo days .
Reason : The first antibacterial agent , prontosil resembles in structure to the compound salvarsan .

In what respect do prontosil and salvarsan resemble. Is there may resemblance between azo dye and prontosil? Explain.

Assertion :- Human exploited the variations that were present naturally in the wild populations of plants & animals. Reason :- Variation is the degree by which progeny resembles from their parents.

Assertion: maltose is reducing sugar Reason : In maltose 1-2 glycosidic linkage is present so free CHO group present which is responsible for reducing nature

Assertion (A) beta -glycosidic linkage is present in maltose. Reason (R) Maltose is composed of two glucose units in which C-1 of one glucose unit is linked to C-4 of another glucose unit. (a)Assertion and reason both are correct statements and reason explains the assertion. (b)Both assertion and reason are wrong statements (c)Assertion is correct statement and reason is wrong statement. (d)Assertion is wrong statement and reason is correct statement.

Assertion :- In NH_(4)NO_(3) , the oxidation number of the two N-atoms is not equal. Reason :- One N atom is present in the ammonium ion while the other is present in the nitrate ion.

Assertion [M(A A)_(3)]^(n+-) is optically inactive Reason Plane of symmetry and center of symmetry are not present .

Assertion (A) The compound tetraene has the following structural formula. It is cyclic and has conjugated 8pi -electron system but it is not an aromatic compound. Reason (R ) (4n + 2)pi electrons rule does not hold good and ring is not planar.

Assertion :- The backbone of polynucleotide chain is formed due to sugar and phosphate. Reason :- A nitrogenous base is linked to the pantose sugar through a N-glycosidic linkage to formed a nucleoside.

Assertion : The H-bond present in NH_(3) dissolved in water is best represented by : H-underset(|)underset(H)(N)-H--underset(|)underset(H)(O)-H and not by H-underset(|)underset(H)overset(|)overset(H)(N)---underset(|)underset(H)(H)-O Reason : The O-H bond polarity is more compared to that N-H bond.

Assertion : The H-bond present in NH_(3) dissolved in water is best represented by : H-underset(|)underset(H)(N)-H--underset(|)underset(H)(O)-H and not by H-underset(|)underset(H)overset(|)overset(H)(N)---underset(|)underset(H)(H)-O Reason : The O-H bond polarity is more compared to that N-H bond.