1.
If the specific heat of a metallic element is 0.214 cal/g, the atomic weight will be closest to:
2.
An ore contains 1.34% of the mineral argentite, by mass. How many gram of this ore would have to be processed in order to obtain 1.00 g of pure solid silver,
3.
In which of the following numbers all zeros are significant?
4.
Weight of an atom of an element is What will be the number of g atom of that element in 40 kg?
5.
In a compound
6.
One gram of hydrogen is found to combine with 80 g of bromine. One gram of calcium (Valency =2) combines with 4 g of bromine. The equivalent weight of calcium is
7.
A bivalent metal has an equivalent mass of 32. The molecular mass of the metal nitrate is
8.
12 g of Mg (at. wt. = 24 ) will react completely with an acid to give:
9.
The atomic weight of a metal ( is 27 and its equivalent weight is 9, the formula of its chloride will be:
10.
1.60 g of a metal were dissolved in to prepare its nitrate. The nitrate on strong heating gives 2 g oxide. The equivalent weight of metal is: