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Rare Constant k Questions and Answers PDF Download eBook
MCQ: By typing 'In 2=' in a calculator, it will display
- 0.693
- syntax error
- 0.963
- 0.396
A
MCQ: HCl is mostly visible in the form of
- blue fumes
- white fumes
- grey fumes
- purple fumes
B
MCQ: The bond angles in ammonia NH3 are
- 107°
- 120°
- 109.5°
- 87.5°
A
MCQ: By chemical means, chemical elements cannot be broken down into
- metals
- non-metals
- smaller substances
- metalloids
C
MCQ: Cations are much smaller than their
- atoms
- molecules
- protons
- photons
A