Download App

Atoms and Molecules — Science STD 9 — Question

CBSE BoardEnglish MediumSTD 9ScienceAtoms and Molecules1 Mark
Question
Write down the formulae for the following compounds:
Calcium oxide.
✓

Answer

The chemical formula of calcium oxide is C a O.

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 "Do as directed; [Che-1 M]" from Atoms and Molecules→Atoms and Molecules — all question types→Science STD 9 question papers→CBSE Board STD 9 question papers→CBSE Board question paper generator→

Similar questions

Other than carbon which shows allotropy.
→
Which radioactive isotope is used to determine the activity of thyroid gland?
→
Why do gases diffuse very fast?
→
Name a non-metal:
Which is lustrous.
→
Which of the following do not exhibit Tyndall effect?
Starch solution, Sugar solution, Ink, Salt solution, Copper sulphate solution, Ammonium chloride solution, Fog, Smoke, Car exhausts.
→
What is the relationship between an atom containing 11 protons, 11 electrons ad 11 neutrons, and another atom containing 11 protons, 11 electrons and 12 neurtrons?
→
Calculate the molecular mass of nitric acid, HNO3.
(Atomic masses: H = 1u; N = 14u; O = 16u)
→
Which of the two diffuses faster: a liquid or a gas?
→
Name the temperature at which:
A liquid changes into a gas.
→
Give the names and symbols of five familiar substances which you think are elements.
→