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More Chemistry Questions
Match List I with List II . List-I List-II a. Haematite 1. Aluminium b. Cassiterite 2. Tin c. Cryolite 3. Silver d. Argentite 4. Iron
Consider the following statements 1. Ozone is used as germicide, air and water purifiers, in making artificial, silk etc. 2. Bitterness in the onions is due to presence of sulphur compounds. 3. Heliumis used in filling the tyres of the aircraft. Which of the statements given above are correct?
Which of the following compounds does not contain crystallization water?
The first element of each period has 1 valence electron and the last element of each period . . . . . . . . have electrons. (Except helium)
E0red of an element cab be calculated by comparing it with _____________________?