True of False ? A. All compounds containing hydrogen are acids. B. None of the p

Question

True of False ?

A. All compounds containing hydrogen are acids.
B. None of the products of nuclear fission are radioactive.

C. A water solution with pH = 4 has a [H+] that is 100 times the [H+] in a solution with pH = 6.

D. Beta rays originate in the nuclei of atoms.

E. A solution of SO3 in water is acidic..

F. The two major components of air are oxygen and argon.

G   When an atom emits alpha radiation it becomes a different element..

H. The pH changes when water is added to an acid solution..

I    As a radioisotope decays its half life changes.

J. If the pressure on a gas doubles, its volume doubles.

Explanation / Answer

Ans- (a) false (there are some acids without hydrogen)

   (b) true

   (c) true (pH 4 is ten times more acidic than pH 5 and 100 times (10 times 10) more acidic than pH 6.)

(d) true ( Beta particles originate in the nucleus of the atom.)

(e) true (H2SO4)

(f) true (Air is mainly composed of nitrogen, oxygen, and argon)

   (g) true

   (h) false

   (i) false (remain constant)

   (j) false (if it is the ideal gas than it will also depend on temperature PV= nRT)

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