Chemistry Questions

True, The luster of a metal is due to presence of free electrons. Luster means shine or soft glow. We know that metals have the quality of reflecting light from its surface.

Disaccharides are formed when two monosaccharides join together by the dehydration synthesis reaction resulting in a glycosidic bond between the two monosaccharide molecules. The reaction produces water as a side product.

A metalloid is any chemical element which has properties in between those of metals and nonmetals, or that has a mixture of them.

The six commonly recognised metalloids are

boron,

silicon,

germanium,

arsenic,

antimony, and

tellurium.

The number of protons is equal to the number of electrons. That is the number of positive charges is equal to the number of negative charges.

Normality is a way of expressing concentration of a solution and can be calculated by the formula-

Normality (N) = No. of gram equivalent of solute/ volume of solution (in litre)

Gram equivalent weight of H2 SO4 = Molecular weight/ No. of Hydrogen atom = 98/2 = 49 gm

No. of gram equivalent in 49 gm of H2 SO4 = 1

So, Normality in 1 litre of solution = 1/1 = 1 N

Silver chloride is a chemical compound with the chemical formula AgCl is also called as Horn Silver. It is also called as cerargyrite. It is a gray, very heavy halide mineral and an ore of silver.