Download App

Acids, Bases and Salts — Chemistry STD 10 — Question

ICSE BoardEnglish MediumSTD 10ChemistryAcids, Bases and Salts3 Marks
Question
Distinguish between a common acid base indicator and a universal indicator.
✓

Answer

A common acid base indicator and a universal indicator:
Acid base indicator like litmus tells us only whether a given substance is an acid or a base. Universal indicator gives an idea as to how acidic or basic a substance is. An universal indicator gives different colours with solutions of different p H values.

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 "[3 Mark Question Answer]" from Acids, Bases and Salts→Acids, Bases and Salts — all question types→Chemistry STD 10 question papers→ICSE Board STD 10 question papers→ICSE Board question paper generator→

Similar questions

How is ammonia gas prepared in laboratory starting from $NH_4Cl$? State the conditions and balanced equation for the preparation.
→
Write the steps needed for flame test ?
→
4.5 moles of calcium carbonate are reacted with dilute hydrochloric acid.What is the mass of 4.5 moles of calcium carbonate? Relative molecular mass of calcium carbonate is 100)
→
The action of heat on the blue crystalline solid X gives a reddish brown gas Y, a gas which re-lights a glowing splint and leaves a black residue. When gas Z, which has a rotten egg smell, is passed through a solution of X, a black ppt. is formed.
  1. Identify X, Y and Z.
  2. Write the equation for action of heat on X.
  3. Write the equation between solution X and gas Z.
→
Copy and complete the following table. Column R has names of gases to be prepared using substances you enter in column P, along with dilute or concentrated sulphuric acid as indicated by you in column Q.
Column PColumn QColumn R
Substance reacted with acidDilute or conc. H2SO4Gas
Hydrogen
Carbon dioxide
Chlorine
→
Give at least one example in case to show structure of isomers of triple bond compound ?
→
Hydrogen sulphide gas burns in oxygen to yield $12.8 g$ of sulphur dioxide gas as under :
$2H_2S + 3O_2 \rightarrow 2H_2O + 2SO_2$
Calculate the volume of hydrogen sulphide at S.T.P. Also, calculate the volume of oxygen required at $S.T.P.$ which will complete the combustion of hydrogen sulphide determined in (litres).
→
(a) Why do the halogen atoms have a very strong electron affinity? Explain.
(b) Arrange Br, F, I and Cl in the order of increasing electron affinity.
→
One chemical test that would enable you to distinguish between the following pair of chemicals. Describe what happens with each chemical or state no visible reaction.
Calcium nitrate solution and zinc nitrate solution.
→
Give a chemical test to distinguish between : dilute sulphuric acid and conc. Sulphuric acid.
→