Which of the following elements replaced eka-Aluminium in Mendeleev's Periodic table?
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Blotting paper absorbs ink due to
What is an endothermic reaction?
_____ is the fourth state of matter.
The chemical weathering of feldspar produces
Which of the following is an unsaturated Hydrocarbon?
If Reserve Bank of India reduces the cash reserve ratio, it will :
The uppermost layer over the earth's surface is called the ______.