Hydrogen has a positive charge ?
Which of the following is homogeneous mixture ?
Which of the following is transition element ?
Ink spreads in water because of ?
The metal present in combine state is called ?
The branch of chemistry in which we study hydrocarbon and their derivatives is called ?
pH of the neutral solution is ?
Number of periods in modern periodic table is?
pH of the acidic solution is less than ?
Electron in its ground state does not ?
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