Sulphuric Acid — Chemistry STD 10 — Question

In a period or in a group, the larger the atomic size of an element, the __________ metallic is the element.

Electrovalent compounds have __________ melting points.

Fill in the blanks:
Zinc blend is converted to oxide by ……… (roasting/calcination) process.

Element X belongs to group 2 and period 3 of the periodic table. It has __________ electrons in the outer most shell.

_______ is used in machine parts due to its _______ tensile strength.

If an element has seven electrons in its outermost shell then it is likely to have the _____ atomic size among all the elements in the same period. (largest, smallest)

Coordinate bond is also called __________bond.

The number of atoms present in one molecule of a substance is its____________

The _______ the concentration of an ion in a solution, the greater is the probability of its being discharged at its appropriate electrode.

Oxidising property ________from fluroine to iodine because the power to accpet electron decreases.