Download App

Substances in Common Use — Science STD 9 — Question

Maharashtra BoardEnglish MediumSTD 9ScienceSubstances in Common Use2 Marks
Question
How are artificial colours harmful to us?
✓

Answer

  • We regularly use artificial colours on Rang Panchami.
  • The red colour used on Rang Panchami is very dangerous.
  • It contains a high proportion of mercury in it.
  • This poses risks like blindness, skin cancer, asthma, itching of the skin, permanent blocking of sweat pores, etc.
  • Therefore, it is necessary that artificial colours are used cautiously.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "Answer the following questions in detail." from Substances in Common Use→Substances in Common Use — all question types→Science STD 9 question papers→Maharashtra Board STD 9 question papers→Maharashtra Board question paper generator→

Similar questions

What is meant by space observation? Why is it important?
→
Write down the modes of infection and preventive measures for leprosy.
→
Define :

Cations

→
Name the hormones of the following endocrine glands and the function of each :

State the functions of different parts of the brain.

→
When calcium carbonate reacts with nitric acid.
→
Write two physical properties each. : Diamond
→
An object moves 18 m in the first 3 s, 22 m in the next 3 s and 14 m in the last 3 s. What is its average speed? (Ans: 6 m/s)
→
Take a piece of coloured cloth. Put some saturated solution of bleaching powder on a small part and observe what changes take place in the colour of the cloth.
→
Bleaching powder reacts with dilute hydrochloric acid.(Explain the following chemical reaction)
→
You must have seen a waterfall. Which way does the water flow?
→