Lakhmir Singh - Class 10 Chemistry Chapter 5 all questions
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Name the Russian chemist who said that the properties of elements are a per.....
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X and Y are the two elements having similar properties which obey Newland's.....
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(a) Did Dobereiner's triads also exist in the columns of Newlands' law of o.....
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(a) Why do we classify elements?
(b) What were the two criteria used by Men.....
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(a) How do the properties of eka-aluminium element predicted by Mendeleev c.....
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(a) State modern periodic law.
(b) How does the electronic configuration of.....
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The atomic particle whose number in the atoms of an element always remains .....
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In the following set of elements, one element does not belong to the set. S.....
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In the following set of element, one element does not belong to the set. Se.....
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Give alongside is a part of the periodic table As we move horizontally from.....
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Consider the following elements
Ca, Cl, Na, I, Li, Ba, Sr, K, Br
Separate t.....
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(a) How does the chemical reactivity of alkali metals vary on going down in.....
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How do electronic configurations of elements change in second period of per.....
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(a) What is the fundamental difference in the electron configurations betwe.....
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(a) How does the atomic size vary on going down from top to bottom in a gro.....
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(a) Why does the size of the atoms progressively become smaller when we mov.....
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(a) What are the periods and groups in a periodic table? Give two character.....
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The atomic numbers of the elements Na, Mg, K and Ca are 11, 12, 19 and 20 r.....
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The correct increasing order of the atomic radii of the elements oxygen, fl.....
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The following diagram shows a part of the periodic table containing first t.....
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The non-metal A is an important constituent of our food and most of the fue.....
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A non-metal X which is the largest constituent of air combines with hydroge.....
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