Alkali is defined as a substance
which provides ………….ions in aqueous solution.
a) Hydrogen ion H+
b) OH-
c) O+
d) none of these
The word alkali has been taken from………….
a) Greek
b) Latin
c) Arabic
d) German
Sodium hydroxide (NaOH), Potassium hydroxide (KOH) and ammonium hydroxide NH4OH are the examples of…………..
a) Alkali
b) Acid
c) Salt
d) None of these
Chemical hydroxide is called…………
NTS PST 24/11/2019 (2:30)
a) fertilizer
b) baking soda
c) sugar industry
d) disinfectant
Which of the following is/are the physical property of Alkalis?
a) they have a bitter taste
b) they are slippery to touch
c) they turn red litmus paper to blue
d) all of these
Calcium hydroxide is used in………..?
NTS PST 24/11/2019 (2:30)
a) fertilizer
b) baking soda
c) sugar industry
d) disinfectant
