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Doctors Medicines MCQs Q&A

Fill in the blanks:

1. Atoms are............. 

2. An ion with positive charge is called...............

3. An ion with negative charge is called..............

4. 2H2 means two............. of hydrogen.

5 ...............is a tri atomic molecule.

6. Metals have................ valency.

7. Chemical name of caustic soda is...............

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1 Answers

1. Atoms are neutral.

2. An ion with positive charge is called cation.

3. An ion with negative charge is called anion.

4. 2H2 means two atoms of hydrogen.

5. Ozone is a triatomic molecule.

6. Metals have variable valency.

7. Chemical name of caustic soda is sodium hydroxide NaOH

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