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Protons and neutrons
Protons and electrons
Electrons
Protons
Which of the following element behaves chemically both as metal & nonmetal -
Which of the following elements does not spread pollution?
Which of the following elements is the first element to be formed in a laboratory?
Which of the following elements is used for the bleaching process?
Which of the following fibres catches fire least ?
Which of the following gas is used for converting vegetable oils into saturated fats -
Which of the following gases is not a noble gas?
Which of the following gases is present under pressure in soft drinks?
Which of the following gases is used in cigarette lighters?
Which of the following group is NOT Dobereiner Triads?