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Pyridine undergoes nucleophilic substitution with excess of NaNH2 at 100℃ to give which of the following?

Pyridine undergoes nucleophilic substitution with excess of NaNH2 at 100℃ to give which of the following? Correct Answer 2,6-diaminopyridine

Sodium amide in excess is used as the nucleophile yielding 2,6-diaminopyridine. The hydride ion released in this reaction combines with a proton of an available amino group, forming a hydrogen molecule.

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When labour is plotted on X-axis and capital is plotted on Y-axis and an iso-quant is prepared, then which of the following statements is/are false ? (a) Marginal rate of technical substitution of labour for capital is equal to the slope of the iso-quant. (b) Marginal rate of technical substitution of labour for capital is equal to change in the units of capital divided by the change in the units of labour. (c) Marginal rate of technical substitution of labour for capital is the ratio of marginal productivity of capital to marginal productivity of labour.
When labour is plotted on X-axis and capital is plotted on Y-axis and an isoquant is prepared, then which of the following statement(s) is/arefalse?
1. Marginal rate of technical substitution of labour for capital is equal to the slope of the iso-quant.
2. Marginal rate of technical substitution of labour for capital is equal to change in the units of capital divided by the change in the units of labour.
3. Marginal rate of technical substitution of labour for capital is the ratio of marginal productivity of capital to marginal productivity of labour.