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ICSE-SAMPLE QUESTION PAPER -4-SECTION - II
- Calculate the percentage of Nitrogen in aluminium nitride . (Al = 27...
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- A compound has the following percentage composition by mass: Carbon - ...
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- Dilute nitric acid is generally considered a typical acid but not so i...
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- Concentrated nitric acid appears yellow when it is left standing in a ...
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- Explain the following : All glass apparatus is used in the labo...
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- With respect to the laboratory preparation of hydrochloric acid ans...
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- With respect to the laboratory preparation of hydrochloric acid ans...
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- With respect to the laboratory preparation of hydrochloric acid ans...
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- In the laboratory preparation of hydrochloric acid, HCl gas is dissolv...
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- With respect to the laboratory preparation of hydrochloric acid ans...
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- Name the method used for obtaining ammonia on a large scale .
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- What is the actual ratio of the reactants ?
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- The temperature used is 450^(@)C . Explain why ? (A) A lower tempe...
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- Write the reaction of sodium with water.
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- An element X belongs to 3rd period and group II of the periodic tabl...
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- An element X belongs to 3rd period and group II of the periodic tabl...
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- An element X belongs to 3rd period and group II of the periodic tabl...
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- An element X belongs to 3rd period and group II of the periodic tabl...
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- State modern periodic law of classification of elements.
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- Atomic size increases down a group of the periodic table. Explain.
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