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VGS PUBLICATION-BRILLIANT-ATOMS ,MOLECULES AND CHEMICAL REACTIONS-EXERCISE
- The word atom is derived from a Greek word " atmos" means………..
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- ……… are the building blocks of all matter.
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- Latin word for water is……….
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- The Latin word for acid is-
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- Symbol of Beryllium is……..
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- Symbol of nitrogen is………..
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- Symbol for gold………….
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- Cl2 is the formula for…………….
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- We are protected by shielding the earth from some harmful rays of the ...
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- The number of atoms constituting a molecule is known as its……….
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- The atomicity of sodium is……….
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- The combining capacity of one atoms with another atom is its………….
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- Valency of Argon is…………
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- Valency of carbon is ………..
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- A positively charged ion is called…………
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- A negatively charged ion is called……….
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- In NH4OH the anion is…………..
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- Standard reference for measuring atomic masses of other elements is ……...
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- The number of times one atom of given element is heavier than 1//12 th...
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- Atomic mass of Magnesium is……….
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