Which of the following materials are used for preparing
blur-black ink?
1 Gallic acid
2 Tannic acid
3 Ferrous sulphate
4 All of these
- 3 Answers
- 4304 Views
- IOCL, I also Faced
- E-Mail Answers
Answer Posted / guest
(4) All of these
| Is This Answer Correct ? | 2 Yes | 0 No |
Post New Answer View All Answers
Explain the Aesthetic and Moral values of Science
Who is the second female cosmonaut?
Who propounded the signs of the zodiac?
What is one light minute?
When was the first american rocket launched?
When was the indian made rocket “ rohini ” launched from thumba?
What is range of sagarika?
the basic approach to science was established by:
In which year, physical laboratory in ahmedabad was founded?
what is office automation?
Where is the biggest solar telescope in india situated?
Which scientist made detailed study on novae?
The country helped in arihant’s built?
Explain how you can integrate Life skills in Science Teaching
Which is the research reactors of bhabha atomic research centre?
