Guess Paper – 2011
Class – X
Subject - Science
SET-A
1.
WHY IS HYDROGEN PEROXIDE KEPT IN COLOURLESS BOTTLES?
2. NAME THE CATALYST USED IN PREPARATION OF METHANOL BY USING WATER AND
CARBON MONO-OXIDE?
3. WHAT IS GREEN VITROL?
4. GIVE EXAMPLE OF A COMPOUND WHICH SPLITS INTO ITS ELEMENTS BY
PASSINGULTRA-VIOLET RAYS?
5. WHAT IS THERMO-CHEMICAL REACTION?
6. WHAT IS ALUMINOTHERMY?
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