Question
When a solution becomes more acidic, pH gets lower.

Answer

Acids are those chemical substances which have a sour taste.
Example: Acetic acid and citric acid.
Base is a chemical substance which has a bitter taste.
Example: Caustic soda and washing soda.

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

Similar questions

What is gypsum? What happens when gypsum is heated to 100°C (373 K)?
A neutral organic compound X of molecular formula C2H6O on oxidation with acidified potassium dichromate gives an acidic compound Y. Compound X reacts with Y on warming in the presence of conc. H2SO4 to give a sweet smelling substance Z. What are X, Y and Z?
In the reaction represented by the equation:

$\text{MnO}_2\ +\ 4\text{Hl}\xrightarrow{\ \ \ \ \ \ \ \ \ \ \ }\text{MnCl}_2\ +\ 2\text{H}_2\text{O}\ +\ \text{Cl}_2$

  1. Name the substance oxidised.
  2. Name the oxidising agent.
  3. Name the substance reduced.
  4. Name the reducing agent.
The structural formula of an ester is:

$ \ \ \ \ \ \ \ \ \text{H} \ \ \ \ \ \text{O} \ \ \ \ \ \ \ \ \ \ \ \ \ \text{H} \ \ \ \ \text{H}\\ \ \ \ \ \ \ \ \ \ \text{|} \ \ \ \ \ \ \text{||} \ \ \ \ \ \ \ \ \ \ \ \ \ \ \text{|} \ \ \ \ \ \ \ \text{|}\\\text{H}-\text{C}-\text{C}-\text{O}-\text{C}-\text{C}-\text{H}\\ \ \ \ \ \ \ \ \ \ \text{|} \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \text{|} \ \ \ \ \ \ \ \text{|}\\ \ \ \ \ \ \ \ \ \text{H} \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \text{H} \ \ \ \ \ \text{H}$

Write the formula of the acid and the alcohol from which it is formed.

A person found that the cake prepared by him is hard and small in size. Which ingredient has he forgotten to add that would have caused the cake to rise and become light? Explain your answer.
Giving one example each, state what are (i) ionic compounds, and (ii) covalent compounds.
The following reaction takes place when aluminium powder is heated with MnO2.
3MnO2(s) + 4Al(s) → 3Mn(l) + 2Al2O3(l) + Heat
  1. Is aluminium getting reduced?
  2. Is MnO2 getting oxidised?
What happens when a rod of zinc metal is dipped into a solution of copper sulphate? Give chemical equation of the reaction involved.
What is saponification? Write the reaction involved in this process.
Write the balanced chemical equation for the following and identify the type of reaction in each case.
  1. Potassium bromide(aq) + Barium iodide(aq) → Potassium iodide(aq) + Barium bromide(s)
  2. Zinc carbonate(s) → Zinc oxide(s) + Carbon dioxide(g)
  3. Hydrogen(g) + Chlorine(g) → Hydrogen chloride(g)
  4. Magnesium(s) + Hydrochloric acid(aq) → Magnesium chloride(aq) + Hydrogen(g)