Chemistry-
General
Easy
Question
A crystalline solid dissolves in water to give colourless solution. On addition of aqueous silver nitrate a yellow precipitate is formed. The solid is most likely to be
- copper (II) oxide
- sodium chloride
- sodium iodide
- zinc sulphate
The correct answer is: sodium iodide
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The reaction is of:
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.
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Let A and B be two square matrices of the same dimension and let [A, B] = AB - BA. Then for three 
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Maths-General
Maths-
If 
for
If for
Maths-General
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equals
equals
Maths-General
