Download App

Study of the First Element - Hydrogen — CHEMISTRY STD 9 — Question

ICSE BoardEnglish MediumSTD 9CHEMISTRYStudy of the First Element - Hydrogen2 Marks
Question
Compare hydrogen with alkali metals on the basis of:
Reducing power
✓

Answer

Both alkali metals and hydrogen act as reducing agents.
$CuO+ H_2→ Cu+H_2O$
$CuO+ Na → Cu + Na_2O$

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 "[2 Mark Question Answer]" from Study of the First Element - Hydrogen→Study of the First Element - Hydrogen — all question types→CHEMISTRY STD 9 question papers→ICSE Board STD 9 question papers→ICSE Board question paper generator→

Similar questions

What do you understand by 'chemical reaction'?
→
(a) What are solubility curves?
(b) State two applications of solubility curves.
→
$1 \mathrm{H}_1, \mathbf{2 \mathrm { H } _ { 1 }}$ and $3 \mathrm{H}_1$ are the isotopes of hydrogen.
(a) Why do these isotopes have similar chemical properties?
(b) Why are these isotopes electrically neutral?
→
Explain the following:
Carbon-12 and carbon-14 both show similar chemical properties.
→
Write the basic radicals and acidic radicals of the following and then write the chemical formulae of these compound.
Sodium thiosulphate
→
What do you observe when Cobalt chloride paper is introduced in water vapour.
→
An element A has 1 electron in its first shell. It combines with element B having 7 electrons in its third shell. What type of bond is formed?
→
Write the basic radicals and acidic radicals of the following and then write the chemical formulae of these compound.
Stannic oxide
→
(a)What is the other name of a noble gas?
(b) Why are the atoms of noble gases unreactive?
(c) Why are the atoms of elements other than noble gases reactive?
→
Compare hydrogen and halogens on the basis of:
ion formation
→