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i- this is correct. here, the word ‘compact’ means ‘a formal agreement between two or more people, organizations, or countries’. ii- here, the usage is incorrect. iii- this is correct. here, ‘compact’ means ‘consisting of parts that are positioned together closely or in a tidy way, using very little space’.
The process of depositing a layer of any desired metal on another material by means of electricity is called:
What is the pH of a neutral solution at 25°C?
Which of the following metals is placed at the bottom of the reactivity series?
The device which transfer the signal from low resistance region to high resistance region is –
Match the following
The conversion of hard water into soft water by boiling or adding calcium hydroxide is called:
Which of the following metals does not liberate hydrogen gas when reacted with cold water but does so with steam?
A galvanometer is used to:
Plants absorb dissolved nitrates from soil and convert them into
What is the chemical name for baking soda?