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SURA PUBLICATION-SELF-EVALUATION TEST 4 MARKS-ANSWER ANY QUESTIONS (CHEMISTRY)
- A is a reddish brown metal which combines with O2 at lt 1370 K gives...
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- (a) Explain the reaction of carboxylic acids on metals. (b) What is ...
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- Define Hydrated salt .
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- Give the applications of Avogadro's hypothesis .
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- Explain the combustion zone in the extraction of iron from its ore ? W...
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- 7.5 litre of ethanol is present in 15 litre of aqueous solutio...
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- Calculate the number of water molecules present in one drop of ...
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- A solution is prepared by dissolving 45g of sugar in 180g of water. Ca...
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- An organic compound of molecule formula C2H6O(A) which is used as an a...
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- Write some solubility substances in water at 25^(@)C.
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- Along with cryolite and alumina, another substance is added to the ele...
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- Arrive at , systematically , the IUPAC name of the compound : CH3-CH2-...
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- How many grams are there in the following ? 3 moles of chlorin...
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- A solid compound 'A' decomposes on heating into 'B' and a gas '...
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- (a) What is activation energy? (b) Powdered calcium carbonate reacts...
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- Give the salient features of " Modern atomic theory ".
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- Silicon forms a compound with chlorine in which 5.6 g of sili...
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- What is aqueous and non-aqueous solution? Give an example.
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- How is Bauxite are concentrated ?
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- List any two differences between atom and molecules.
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