Download App

Air and Atmosphere — CHEMISTRY STD 7 — Question

ICSE BoardEnglish MediumSTD 7CHEMISTRYAir and Atmosphere1 Mark
Question
State two characteristics ofBasic oxides.
✓

Answer

Basic oxide
  1. Formed when metals are burnt in air
  2. turn red litmus to blue.
    eg. potassium oxide [$K_2O$]

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 "[1 Mark Question Answer]" from Air and Atmosphere→Air and Atmosphere — all question types→CHEMISTRY STD 7 question papers→ICSE Board STD 7 question papers→ICSE Board question paper generator→

Similar questions

Give a balanced equation to obtain oxygen from Lead dioxide.
→
Define: Atomic number
→
Give two examples of metallicoxides.
→
Name a metalthat can be cut with knife
→
Name the particle or particles you would expect to find in :
The orbit of an atom
→
A chemical called oxygenated water.
→
Name the two acids present in acid rain.
→
State two important uses of following metal
Uses of lead
→
Define: Atomic number
→
Give the names and symbols of:Three non-metals which are gases.
→