Download App

Natural Resources — Science STD 9 — Question

Gujarat BoardEnglish MediumSTD 9ScienceNatural Resources1 Mark
MCQ
Photochemical smog is formed by:
  • ✓
    $NO_2$
  • B
    $SO_2$
  • C
    $CO_2$
  • D
    $CO$
✓

Answer

Correct option: A.
$NO_2$
A.  $NO_2$
Explanation:
Photochemical smog is formed in atmosphere when ozidized volatile organic compounds react with nitrogen oxide.

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 "M.C.Q. [1 M]" from Natural Resources→Natural Resources — all question types→Science STD 9 question papers→Gujarat Board STD 9 question papers→Gujarat Board question paper generator→

Similar questions

When two bodies moves uniformly towards each her then they cross each other at the speed of 10m/s. If both the bodies move in the same direction, then they cross each other at the speed of 6m/s. The speed of both bodies are:
→
You lift a suitcase from the floor and keep it on the table. The work done by you on the suitcase depends on:
→
Which of these terms is used to describe a condition that interferes with the normal functioning of the body or mind$?$
→
Amphibians of the plant kingdom are the:
→
The undefined nuclear region of prokaryotes are also known as:
→
The conversion of a solid into vapours without passing through the liquid state is called:
→
In chronic disease a patient suffers from:
→
Which of the following frequency of sound can be generated by a vibrating simple pendulum as well as by the vibrating vocal cords of a rhinoceros?
→
The physical quantity which makes it easier to accelerate a small car than a large car is measured in the unit of:
→
When heat is constantly supplied by a burner to boiling water, then the temperature of water during vaporisation:
→