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CBSE Questions

Total Questions 9982
WHAT IS ENERGY CONVERSION
List and describe some of the Applications of Trigonometry in real life.
WHAT IS REFLECTION AND REFRACTION
please provide the procedure to do the project 'study of drug resistance of bacteria in milk using penicillin and amoxylin?
who invite KEY BOARD
who invite CPU
who invite UPS
what is diversity
what is vedas
what is discrimination
what is biogas
How is paper made?
liquid generally have lower density as compared to solid.But you must have observed that ice floating on water.
NAME TWO METALS WHICH WILL DISPLACE HYDROGEN FROM DILUTE ACIDS AND TWO METALS WHICH WILL NOT
YOU ARE GIVEN A HAMMER,A BATTERY ,A BULB ,WIRES AND A SWITCH. 1.HOW COULD USE TO DISTINGUISH BETWEEN SAMPLES OF METALS AND NON METALS? 2.ASSESS THE USEFULNESS OF THESE TESTS IN DISTINGUISHING BETWEEN METALS AND NON METALS?
FOOD CANS ARE COATED WITH TIN AND NOT WITH ZINC BECAUSE
An element reacts with oxygen to give a compound with a high melting point. This compound is also soluble in water.The element is likely to be
which metal do not corrode easily?
what chemical process is used for obtaining a metal from its oxide?
1.show the formation of Na2O and MgO by the transfer of electrons. 2.what are the ions present in these compounds?