Q. Which of the following is required for the rusting of iron?
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Q. Which of the following metals is used in spacecraft to tolerate high temperatures?
Q. The energy released when an extra electron is added to a neutral gaseous atom is called
Q. Metal tea pots have wooden handles as
Q. The rusting of iron is a/an
Q. The green colour seen in firework displays is due to the chloride salt of:
Q. The Unit of plank’s constant is –
Q. The density of a gas is max. at
Q. Which one of the following is one of the primary producers ?
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