Two questions about acid? ?

1. which of the following statements is not true regarding acids?

arrhenius acid is any substance that increases the concentration of hydronium ions.

lewis acid is a substance that donates a lone-pair of electrons.

brønsted-lowry acid is any substance that donates a hydrogen ion.

the ph is less than 7.0.

2. which of the following would decrease the ph level of an acidic solution?

increasing the number of hydrogen ions
increasing the concentration of hydroxide ions
adding a base to the acid
decrease the concentration of hydroniu

Imagine if during the cathode ray experiment, the size of the particles of the ray was the same as the size of the atom forming the cathode. which other model or scientific observation would have also been supported? 1. this would support dalton's postulates that proposed the atoms are indivisible because no small particles are involved. 2. this would support bohr's prediction about electrons moving in orbits having specific energy. 3. this would support bohr's prediction about electrons being randomly scattered around the nucleus in the atom. 4. this would support dalton's postulates that proposed that atoms combine in fixed whole number ratios to form compounds.