You are provided with a sample and a strip of red litmus paper. How would you confirm the nature of the sample? a) Dip the litmus paper in the sample b) Dip the litmus paper in a dilute solution of NaCl and then put three drops of the liquid sample on it c) Put four drops of the liquid sample on the litmus paper. d) Dip the litmus paper in a dilute solution of NaOH and then put 2 drops of the liquid sample on it. Correct answer is option 'D'. Can you explain this answer?

Question

Answer

You don't have to do this much complex work, just dip the litmus paper in sample solution if it remain unchanged then it is an acidic solution and if it changes to blue then it is a basic solution.

Thank you.. :-)

Answer

Litmus..  Paper ko Dip krne se Hi pta Lg jayega.    Kisi it was Acidic n Basic

Answer

In a easy way:
we are provided a red litmus Paper we only just have to dip this litmus Paper in thE solutiOn
if it's colour changes to blue then it is a base .
if not thn it's a acid.

Answer

Confirmation of the Nature of the Sample

To confirm the nature of the sample using a red litmus paper, we can follow the steps mentioned in option 'D':

1. Dip the litmus paper in a dilute solution of NaOH:
- Start by dipping the red litmus paper into a dilute solution of sodium hydroxide (NaOH). This step helps in preparing the litmus paper for the subsequent test with the sample.

2. Put 2 drops of the liquid sample on the litmus paper:
- After the litmus paper has been dipped in the NaOH solution, carefully place two drops of the liquid sample onto the prepared litmus paper.

Explanation of Option D

The reason why option 'D' is the correct answer lies in the reaction between the sample and the red litmus paper, which is influenced by the presence of the dilute NaOH solution. The reaction proceeds as follows:

- Litmus paper is an indicator that changes color depending on the pH of the substance it comes into contact with.
- Red litmus paper turns blue when it comes in contact with a basic or alkaline substance.
- Sodium hydroxide (NaOH) is a strong base, and its dilute solution provides a basic environment for the litmus paper.

When the sample is placed on the litmus paper that has been treated with the NaOH solution, the following possibilities can occur:

1. If the sample is acidic:
- The red litmus paper, being an acid indicator, remains red because acids do not affect its color.
- The dilute NaOH solution does not change the color of the litmus paper either, as it is not acidic.

2. If the sample is basic or alkaline:
- The red litmus paper, being an acid indicator, turns blue when it comes into contact with a basic substance.
- The dilute NaOH solution further enhances the basic environment, making the litmus paper more likely to turn blue if the sample is basic.

By using a combination of the red litmus paper treated with a dilute NaOH solution and adding the sample to it, we can effectively determine if the sample is basic or alkaline in nature. If the litmus paper turns blue, it confirms that the sample is basic.

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You are provided with a sample and a strip of red litmus paper. How would you confirm the nature of the sample?

You are provided with a sample and a strip of red litmus paper. How would you confirm the nature of the sample ?

You are provided with a sample and a strip of red litmus paper. How would you confirm the nature of the sample ?

You are provided with a sample and a strip of red litmus paper. How would you confirm the nature of the sample ?

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