Indian Navy INET Some Basic Concepts of Chemistry — practice questions

Explore 2 free Some Basic Concepts of Chemistry questions in Indian Navy INET Chemistry. Open each question or exercise to read its content, reference answers and available explanation.

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Some Basic Concepts of Chemistry questions and exercises with answers

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As per your syllabus, the AVOGADRO CONSTANT (N_A) has the approximate value of which?Read the answer and worked solution →As per your syllabus, mass % (w/w%) is given by which formula?Read the answer and worked solution →

Worked practice questions

As per your syllabus, the AVOGADRO CONSTANT (N_A) has the approximate value of which?

Different in different countries
6.022 × 10²³ mol⁻¹
12 × 10²³
6.022 × 10⁻²³

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Correct answer: B. 6.022 × 10²³ mol⁻¹

As per your syllabus, N_A ≈ 6.022 × 10²³ per mole. Same everywhere — universal constant.

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As per your syllabus, mass % (w/w%) is given by which formula?

(Volume solute / volume solution) × 100
(Moles of solute / mass of solvent) × 100
(Mass of solute / Mass of solution) × 100
(Mass of solvent / mass of solute) × 100

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Correct answer: C. (Mass of solute / Mass of solution) × 100

As per your syllabus, Mass per cent, mass% = (mass solute / mass solution) × 100.