Why is the indicator eriochrome black(ebt) shows wine red color at the beginning and blue color at the end?
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What is wave length?
Which gas is used, in laboratories etc. for burners ?
Give the principle of potentiometer titration.
Which of the above conductivity measured during conductometric titration?
What is si unit of viscosity-coefficient?
Cholesterol is a compound suspected of causing hardening of the arteries. The formula of cholesterol is C27H46O. a. A sample of cholesterol is isolated from the arterial lining of a 60-year-old American male. What is the formula of this compound? b. Cholesterol is extracted from a chicken’s egg. What is the formula of this compound?
what is the valence of nitrogen?
What is german silver?
Why is Davy Lamp called a Safety Lamp ?
Why are wires used to carry electricity ?
Why is heat more oppressive on a damp hot day ?
What variety of carbon is used for refining purposes ?