Download App

Acids, Bases and Salts — Science STD 10 — Question

CBSE BoardEnglish MediumSTD 10ScienceAcids, Bases and Salts5 Marks
Question
Solution A turns universal indicator blue to purple whereas solution B turns universal indicator orange to red.
  1. What will be the action of solution A on litmus?
  2. What will be action of solution B on litmus?
  3. Name any two substances which can give solutions like A.
  4. Name any two substances which can give solutions like B.
  5. What sort of reaction takes place when solution A reacts with solution B?
✓

Answer

  1. Solution A turns universal indicator blue to purple so it is basic in nature and will turn litmus blue.
  2. Solution B turns universal indicator orange to red so it is acidic in nature and will turn litmus red.
  3. Milk of magnesia and sodium hydroxide solution are bases like solution A.
  4. Lemon juice and hydrochloric acid are acids like solution B.
  5. Neutralisation reaction.

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 "[5 marks Questions]" from Acids, Bases and Salts→Acids, Bases and Salts — all question types→Science STD 10 question papers→CBSE Board STD 10 question papers→CBSE Board question paper generator→

Similar questions

Draw the diagram of a flower and label the four whorls. Write the names of gamete producing organs in the flower.
→
What are hydrocarbons? Give examples.
→
Give one difference between sexual and asexual reproduction.
→
An element X forms two oxides XO and $XO _2$. The oxide XO has no action on litmus solution but oxide $XO _2$ turns litmus solution red.
a. What is the nature of oxide XO ?
b. What is the nature of oxide $XO _2$ ?
c. Would you call element $X$ a metal or a non-metal? Give reason for your choice.
d. Can you give an example of element like $X$ ?
→
While conducting experiments to study the effect of various stimuli on the plants, it was observed that the roots of a plant X grow and bend towards two stimuli A and B but bend away from a third stimulus C. The stem of the plant X, however, bends away from stimuli A and B but bends towards the stimulus C. The stimulus B is known to act on the roots due to too much weight of the earth. Keeping these points in mind, answer the following question:
  1. What could stimulus A be?
  2. Name the stimulus B.
  3. What could stimulus C be?
  4. The branches of a fallen tree in a forest grow straight up in response to two stimuli. What could be these two stimuli out of A, B and C? Also name these two stimuli.
→
Categorize some of the activities performed by you as an eco-friendly person. Suggest some more eco-friendly activities which we should adopt in day-to-day life.
→
What is the difference between the chemical composition of soaps and detergents? State in brief the action of soaps in removing an oily spot from a shirt. Why are soaps not considered suitable for washing where water is hard?
→
Explain the cleansing action of soap. Draw diagrams to illustrate your answer.
→
Why does a light ray incident on a rectangular glass slab immersed in any medium emerges parallel to itself? Explain using a diagram.
→
A compound $X$ is formed by the reaction of a carboxylic acid $C _2 H _4 O _2$ and an alcohol in presence of a few drops of $H _2 SO _4$. The alcohol on oxidation with alkaline $KMnO _4$ followed by acidification gives the same carboxylic acid as used in this reaction. Give the names and structures of:
a. Carboxylic acid.
b. Alcohol.
c. The compound X. Also, write the reaction.
→