8th Standard Syllabus & Materials
8th Standard
TN 8th Tamil இயல் 3 - கல்வி கரையில - வினைமுற்று Important Questions And Answers Study Material - QB365 Set A
NEW8th Standard
TN 8th Tamil இயல் 2 - ஈடில்லா இயற்கை - மயங்கொலிகள் Important Questions And Answers Study Material - QB365 Set A
NEW8th Standard
TN 8th Tamil இயல் 2 - ஈடில்லா இயற்கை -பட்டமரம் Important Questions And Answers Study Material - QB365 Set A
NEW8th Standard
TN 8th Tamil இயல் 2 - ஈடில்லா இயற்கை - இயற்கையை போற்றுவோம் Important Questions And Answers Study Material - QB365 Set A
NEW8th Standard
TN 8th Tamil இயல் 1 - தமிழ் இன்பம் - ஆழிக்கு இணை Important Questions And Answers Study Material - QB365 Set A
NEW8th Standard
TN 8th Tamil இயல் 2-ஈடில்லா இயற்கை - திருக்குறள் Important Questions And Answers Study Material - QB365 Set A
Published on: 11/12/2020
8th Standard Science Acids and Bases English Medium Free Online Test 1 Mark Questions 2020-2021
Download Tamil Nadu 8th Standard Science question papers, model tests, one-mark questions, important questions, and public exam papers in PDF format. Free study materials and answer keys for TN State Board students.
Questions + Answers key
Take MCQ Science Test1.
In basic solution turmeric indicator paper changes from yellow to __________
blue
green
yellow
red
2.
We brush our teeth with tooth paste because it is __________ in nature.
basic
acidic
basic and acidic
None of these
3.
Acid mixed with base forms ________
salt and water
salt
water
No reaction
4.
Magnesium hydroxides are used for treating_______
acidity
head pain
teeth decay
None of these
5.
Red ant sting contains __________
acetic acid
sulphuric acid
oxalic acid
formic acid
6.
Sodium hydroxide is a ________
acid
base
oxide
alkali
7.
The base is a substance that gives _____ on dissolving in water.
OH-
H+
OH
H
8.
In acidic solutions blue litmus changes into ______ colour.
blue
green
red
white
9.
Aqueous solutions of _________ conduct electricity.
acid
base
salt
All of these
10.
Acids are ________ in taste.
sour
sweet
bitter
salty
1.
(d)
red
2.
(a)
basic
3.
(a)
salt and water
4.
(a)
acidity
5.
(d)
formic acid
6.
(b)
base
7.
(a)
OH-
8.
(c)
red
9.
(d)
All of these
10.
(a)
sour
8th Standard Syllabus & Materials
8th Standard
TN 8th Tamil இயல் 3 - கல்வி கரையில - பாடறிந்து ஒழுகுதல் Important Questions And Answers Study Material - QB365 Set A
NEW8th Standard
TN 8th Tamil இயல் 3-கல்வி கரையில - பல்துறைக் கல்வி Important Questions And Answers Study Material - QB365 Set A
NEW8th Standard
TN 8th Tamil இயல் 3-கல்வி கரையில - புத்தியைத் தீட்டு Important Questions And Answers Study Material - QB365 Set A
NEW8th Standard
TN 8th Tamil இயல் 2 - ஈடில்லா இயற்கை - தமிழர் மருத்துவம் ( நேர்காணல்) Important Questions And Answers Study Material - QB365 Set A
Tamilnadu Stateboard 8th Standard Subjects
Tamilnadu Stateboard Standards
