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As per CPC. S.1 (2) It shall come into force on the first day of January, 1909.
Which of the following metals is placed at the bottom of the reactivity series?
Which dating method is commonly used to determine the age of materials from prehistoric times?
Which of the following pairs of phenomena illustrate the particle nature of the electromagnetic radiation?
Which acid is present in grapes?
What happens to a liquid, when the vapour pressure equals the atmospheric pressure?
Bases react with acids to form ________.
Sphagnum is an important bryophyte. Consider the following statements about it:
Red light is used for signals because it has –
What is the term used for the addition of suitable impurities into the semiconductor for modulating its properties?
Which of the following elements has the maximum number of atoms in their molecular form?
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