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LAKHMIR SINGH & MANJIT KAUR-PERIODIC CLASSIFICATION OF ELEMENTS-Exercise
- An element X from group 2 reacts with element Y from group 16 of the p...
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- A metal X is in the first group of the periodic table. What will be th...
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- An element A from group 14 of the periodic table combines with an elem...
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- An element X from group 2 of the periodic table reacts with an elemen...
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- The following diagram shows a part of the periodic table containing f...
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- The elements A,B and C belong to groups 1,14 to 17 respectively of the...
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- Find the neutral atom in the periodic table which has the same number ...
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- Write the names and symbols of two very reactive metals belonging to g...
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- The non-metal A is an important constituent of our food and most of th...
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- A non metal X which is the largest constituent of air combines with hy...
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- Solid sodium bicarbonate was placed on a strip of pH paper. The colour...
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- When dilute hydrochloric acid is added to granulated zinc placed in a ...
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- When an aluminium strip is kept immersed in freshly prepared ferrous s...
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- The description which most approximately suits sulphur dioxide gas is ...
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- Ethanoic acid was added in drops to water and it was noticed that :
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- A colourless liquid sample was tested with pH paper strip. The colour ...
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- Ehanoic acid was added to sodium hydrogencarbonate solution and the ga...
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- Which one of the following set ups is the most apropriate for the evol...
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- Four students A,B,C and D noted the initial colour of the solutions in...
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- Four gas jars filled with sulphur dioxide gas wer inverted into trough...
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