Which of the following has tetrahedral

Which of the following has tetrahedral

Options

(a) K₄[Fe(CN)₆] (b) CO₃⁻ (c) NaNO₃ (d) NH₄⁺

Correct Answer:

NH₄⁺

Explanation:

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The shortest part of digestive system is

The shortest part of digestive system is

Options

(a) small intestine (b) pharynx (c) large intestine (d) oesophagus

Correct Answer:

pharynx

Explanation:

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