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LAKHMIR SINGH & MANJIT KAUR-ATOMS AND MOLECULES-Exercise
- Name the scientist who gave : (a) law of conservation of mass. ...
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- Name the law of chemical combination : (a) Which was given by Lavo...
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- Name the scientist who gave atomic theory of matter.
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- Which postulate of Dalton’s atomic theory is the result of the law o...
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- Which postulate of Dalton’s atomic theory can explain the law of def...
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- Which ancient India philosopher suggested that all matter is composed...
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- Name any two laws of chemical combination.
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- If 100 grams of pure water taken from different sources is decomposed ...
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- If 100 grams of calcium carbonate (whether in the form of marble or ...
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- What are the builiding blocks of matter ?
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- How is the size of an atom indicated ?
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- Name the unit in which the radius of an atom is usually expressed.
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- Write the relation between nanometre and metre.
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- The radius of an oxygen atom is 0.073 nm. What does the symbol 'nm' ...
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- State whether the following statement is true or false : The symbol...
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- Define 'molecular mass' of a substance.
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- What is meant by saying that 'the molecular mass of oxygen is 32'...
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- Fill in the following blanks with suitable words : (a) In water , t...
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- (a) Name the element used as a standard for atomic mass scale. (b) W...
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- Give one major drawback to Dalton's atomic theory of matter.
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