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Cu-63 isotope is $69.09 \%$ and $C u-65,30.91 \%$ in a copper atom.

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$1.5276 g$ of $CdCl _{2}$ was found to contain $0.9367 g$ of cadmium. Calculate the atomic weight of cadmium.

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10.7522 $g$ of silver gave-12.3502 $g$ of $Ag _{2} S$. Calculate the atomic weight of sulphur if equivalent weight of silver is 107 88 .

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A piece of a metal weighs between $0.5 g$ and $0.6 g$. When dissolved in dilute $H _{2} SO _{4}, 196 mL$ of

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3.7 $g$ of an oxide of a metal was heated with charcoal. The liberated $CO _{2}$ was absorbed in caustic soda solution and weighed $1.0 g$

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$1.0 g$ of a metallic carbonate left on ignition $0.56 g$ of its oxide. What is the atomic weight of the metal?

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$1.878 g$ of a metal bromide when heated in a stream of hydrogen chloride gas is completely converted to the chloride weighing $1 \cdot 00 g$.

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A hydrated sulphate of a metal contained $8.1 \%$ metal and $43 \cdot 2 \%$ sulphate by weight.

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The vapour density of a chloride of a metal is $81 \cdot 5(H=1)$ and the chloride contains $34.46 \%$ metal. The specific heat of the metal is $0 \cdot 115$.

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The chloride of a metal $M$ is to contain $20 \cdot 2 \%$ metal. The specific heat of the metal is $0 \cdot 224$.

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It was found that $100 g$ of silver combined with all the chlorine in $56 \cdot 0$ $g$ of arsenious chloride.

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$0.4686 g$ of a metal oxide yields on reduction $0.3486 g$ of the metal

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Potassium sulphate is isomorphous with potassium chromate which contains $26.79 \%$ by weight of chromium.

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$Cu _{2} S$ and $Ag _{2} S$ are isomorphous compounds. The percentage of sulphur in $Cu _{2} S$ is $20 \cdot 14$ and that in $Ag _{2} S$ is 12.94.

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The oxides of two metals $X$ and $Y$ are isomorphous. The metal $X$ whose atomic weight is 52 forms a chloride whose vapour density is 79.

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$0.2 g$ of a divalent metal when treated with excess of dil.

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$71.0 g$ of chlorine gave $287 g$ of the chloride of a metal. If the metal is monovalent, then the atomic weight will be :

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The specific heat of a metal is $0 \cdot 16$. Its approximate atomic weight would be :

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$1.0 g$ of hydrogen is heated to combine with $80.0 g$ of bromine and $1.0 g$ of calcium (valency $=2$ ) combines with $4.0 g$ of bromine.

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The element $X$ is trivalent. $9 \cdot 0 g$ of the element combines with $8.0 g$ of oxygen. The atomic weight of $X$ is, therefore :

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What is Equivalence Relation?

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What is Transitive Relation?

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What is Anti Symmetric Relation?

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What is Symmetric Relation?

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What is Reflexive Relation?

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What is Relation?

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What were the main causes of the French Revolution in 1848?

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What is the role of Austria in the unification of Italy and Germany?

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Discuss the works of Garibaldi

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What is the significance of 'Ghetto' in European History?

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