Question

Statement(2) is false.
a) and (2) are false.
als (1) and (2) are true.
mical name of Milk of
momia, dissolved in water shows
false. Statement (2) is true
Vitric acid turns red litmus bh
Tooth decay is caused by the
Statement (2) is fa
ents (1) and (2) are false
b) is false, Statement (2) is
from food in the stomach
cal name of lime water
blue litmus red
turns
are true
Class:
Statement(2)
mange
and Sta
7) true
Work sheet
mue,
bis
(
Laprehension
sikalies acts as an anta
(
Leandro
hydroxide
droxide
hydroxide
Single Choice Correct
1) Many salts absorb water from the atmosphere. This property is called
(a) hydration (b) dehydration (c) deliquescence (d) crystallisation
2) The substances which form hydronium ions (110) in water are called
(a) acids
(b) bases
(c) alkalies
(d) none of these
3) The compounds which produce hydroxyl ions Ohr in water are called
(a) alkalies (b) bases
(c) acids
(d) none of these
4) Acid turns litmus solution
(a) red to blue (6) blue to red (c) no effect (d) none of these
5) The Sulphuric acid (H.SO.) is
(a) monobaste (b) dibasic
(c) tribasic
(d) none of these
6) The acidity of slaked lime Ca(OH), is
(b) 2
(d) 4
7) Metallic oxides dissolve in water to form
(a) acidic solution
(b) basic solution
(c) neutral solution
(d) none of these
8) Non metallic oxides react with water to form
(a) alkaline solution
(b) acidic solution
(c) neutral solution
(d) none of these
9) Common salt (NaCD) is
(a) normal salt (b) acidic salt
(c) basic salt (d) none of these
10) Which of the following types of medicines is used for treating indigestion?
(a) antibiotic (b) analgesic (c) antacid
(d) antiseptic
Multi Correct
11) Which of those solutions changes the p' value from 7 to 3
(4) NaOH (b) Mg(OH)2
(c) HCA
(d) H-SO,
12) Which of those are hydrated salts
(a) Common salt (b) Blue vitriol
(c) Epsom salt (d) None
13)An aqueous solution of Sodium oxide changes litmus to
(a) Red to Blue (b) Blue to Red (c) Red and Blue (d) None
(
(
Vimod
Soda
(
of paris
vitriol
DOH
14) The solution formed by reacting P,0s with water turns
litmus is
(a) Blue to Red (b) Red to Blue
(c) Red, Blue
(d) None
NGS​

Answer 1

Answer:

False, nitric acid turns blue litmus to red because it is an acid. (b) False, sodium hydroxide is a base, so it will turn red litmus to blue. (c) True (d) True (e) False, tooth decay is caused by the presence of acid.

Explanation: