English

In What Respect Does Hydrogen Differ From: Alkali Metals

Advertisements
Advertisements

Question

In what respect does hydrogen differ from:

alkali metals

One Line Answer
Advertisements

Solution

Oxides of alkali metals are basic in nature, whereas the oxide of hydrogen H2O is a neutral oxide.

shaalaa.com
  Is there an error in this question or solution?
Chapter 6: Study of the First Element - Hydrogen - Exercise 6 (A) [Page 102]

APPEARS IN

Selina Concise Chemistry [English] Class 9 ICSE
Chapter 6 Study of the First Element - Hydrogen
Exercise 6 (A) | Q 4.1 | Page 102

RELATED QUESTIONS

Why does the colour of copper sulphate solution change when an iron nail is dipped in it?


When a magnesium ribbon is heated, it burns in air to form magnesium oxide. Write a balanced chemical equation for this reaction. Name

  1. substance oxidised, and
  2. substance reduced.

Complete and balance the following equation:

Fe + H2O →___________+____________


State a reason why, when hydrogen is passed over heated copper oxide, the resultant product formed, differs in colour from the original reactant.


Balance the given chemical reaction as per the instructions below.

\[\ce{NaOH + H2SO4 -> Na2SO4 + H2O}\]

Oxidation means losing electrons then what is reduction?


Identify the oxidising agent (oxidant) in the following reactions

`"V"_2"O"_5 + 5"Ca" -> 2"V" + 5"CaO"`


Identify the following reactions as oxidation/reduction/redox reaction

2Mg +O2 → 2MgO


Find the oxidation number of the element in the following compound.

A1 in AlCl3


When hydrogen gas is passed over black copper oxide, a reddish-coloured layer of copper is formed.

Answer the questions that follow based on this reaction.

  1. Write the equation.
  2. What type of reaction is it?
  3. Complete the blanks:
    In this reaction, an oxygen atom goes away from CuO (copper oxide), which means that ______ of copper oxide takes place, whereas a hydrogen molecule takes up an oxygen atom and water (H2O) is formed, meaning ______ of hydrogen takes place.

State the change in colour observed in following case mentioning the reason:

Copper powder is strongly heated in air.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×