Which wavelengths are visible to human eye?
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if this element X combines with another element Y whose electronic configuration is 2, 8, 7 what will be the formula of the compound thus formed? State how did you arrive at this formula
Why are substances like caustic soda and calcium chloride called hygroscopic substances ?
How many millilitre is equal to 1 litre and how many microliter is equal to litre?
Why do we feel chilly in damp clothes ?
What s the difference between hard and soft coal ?
Explain the Chemical Manures ?
What is photoelectric colorimeter?
Explain the Electrolytic Method ?
What is molar conductivity?
Why we use potassium dichromate in control of absorbance in uv region and copper sulphate in control of absorbance in visible region?
What is protein - according to chemistry?
Which is heavier, water or ice ?