Hardest compound of boron is

Hardest compound of boron is

Options

(a) Magnesium boride (b) aluminium boride (c) boron nitride (d) boron carbide

Correct Answer:

boron carbide

Explanation:

Boron carbide is written as B₃C.It is produced by reducing […]

Which of the following is always feasible

Which of the following is always feasible

Options

(a) ΔH = TΔS (b) ΔH (+ve),TΔS(-ve) and ΔH>TΔS (c) ΔH(-ve),TΔS(+ve) and ΔH< TΔS (d) ΔH(-ve), TΔS(-ve) and ΔH>TΔS

Correct Answer:

ΔH(-ve),TΔS(+ve) and ΔH< TΔS […]

Which one forms KHX₂ type compound

Which one forms KHX₂ type compound

Options

(a) HF (b) HCl (c) HI (d) HBr

Correct Answer:

HF

Explanation:

No explanation available. Be the first to write the explanation for this question by […]

Genetic drift operates only in

Genetic drift operates only in

Options

(a) island population (b) smaller population (c) larger population (d) mendelian population

Correct Answer:

smaller population

Explanation:

No explanation available. Be the first to write the explanation […]

The dual nature of light is exhibited by

The dual nature of light is exhibited by

Options

(a) Photoelectric effect (b) Refraction and interference (c) Diffraction and reflection (d) Diffraction and photoelectric effect

Correct Answer:

Diffraction and photoelectric effect

Explanation:

Diffraction exhibits […]

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