what are neutral substance? the word was used in the lesson 2 chapter acids bases and salts end of the first video!
Neutral solution is that which has equal concentration of [H+ ] and [OH - ] ions or have pH equal to 7.
a) What are salts? How are they formed from acids and bases? Are they acidic, basic or neutral? Give examples. [3 MARKS] b) Give names of the acids found in the following substances: i) Vinegar ii) Curd. [2 MARKS]
Sample paper of acids bases and salts full chapter
Fill in the blanks:
(1) Most of the acidic substances are ________ in taste.
(2) Phenolphthalein is ________ type of indicator.
(3) The strength of basic substance is represented by ________.
(4) pH scale ranges from ________ to ________
(5) Acids and bases neutralize each other to form ________ and ________.
(6) Sodium or potassium salts of higher fatty acids are termed as ________.
(7) In FeSO4.7H2O, H2O represents ________.
(8) 10% NaCl is known as ________.
True or false?
(a) Oxides of metals are basic.
(b) Common salt is acidic.
(c) Salts corrode metals.
(d) Bases are formed by the neutralization reaction between acids and salts.
(e) Salts are neutral.