Juice of tamarind turns blue litmus to red. It is because of the presence of a chemical compound called:
Juice of tamarind turns blue litmus to red. It is because of the presence of a chemical compound called:
Show Hint
- Acetic acid
- Methanoic acid
- Oxalic acid
- Tartaric acid
{5pt}
The Correct Option is D
Solution and Explanation
Step 1: Identifying the chemical compound. Tamarind juice is acidic due to the presence of tartaric acid, which is a weak acid.
Step 2: Conclusion. Therefore, the correct answer is tartaric acid.
Top Questions on Organic Chemistry
A light green coloured solution of sulphate salt of metal 'P' is taken in a beaker, a rod of another metal 'Q' is put in this solution as shown in the following figures:
- CBSE Class X - 2025
- Science
- Organic Chemistry
Assertion (A): Carbon and its compounds are our major sources of fuels.
Reason (R): Most of the carbon compounds on burning release a large amount of heat and light.- CBSE Class X - 2025
- Science
- Organic Chemistry
The water of crystallization is present in:
- CBSE Class X - 2025
- Science
- Organic Chemistry
A hydrocarbon which does not belong to the same homologous series of carbon compounds is
- CBSE Class X - 2025
- Science
- Organic Chemistry
You have three aqueous solutions A, B, and C as given below:
A - Potassium nitrate
B - Ammonium chloride
C - Sodium carbonate
The ascending order of the pH of these solutions is:- CBSE Class X - 2025
- Science
- Organic Chemistry
Questions Asked in CBSE X exam
Read the following source and answer the questions that follow:
Loans from Co-operatives
Besides banks, the other major source of cheap credit in rural areas are the co-operative societies. Members of a co-operative pool their resources for co-operation in certain areas. There are several types of co-operatives possible such as farmers co-operatives, weavers co-operatives, industrial workers co-operatives etc. Krishak Co-operative functions in a village not very far away from Sonpur. It has 2300 farmers as members. It accepts deposits from its members. With these deposits as collateral, the co-operative has obtained a large loan from the bank. These funds are used to provide loans to members. Once these loans are repaid, another round of lending can take place. Krishak Co-operative provides loans for the purchase of agricultural equipment, loans for cultivation and agricultural trade, fishery loans, loans for construction of houses and for variety of other expenses.- CBSE Class X - 2025
- Reading Comprehension
Read the following source and answer the questions that follow:
The Need for Political Parties
As we have seen, large societies need representative democracy. As societies became large and complex, they also needed some agency to gather different views on various issues and to present these to the government. They needed some ways, to bring various representatives together so that a responsible government could be formed. They needed a mechanism to support or restrain the government, make policies, justify or oppose them. Political parties fulfil these needs that every representative government has. We can say that parties are a necessary condition for a democracy.- CBSE Class X - 2025
- Reading Comprehension
Read the following source and answer the questions that follow:
The Independence Day Pledge, 26 January 1930
“We believe that it is the inalienable right of the Indian people, as of any other people, to have freedom and to enjoy the fruits of their toil and have the necessities of life, so that they may have full opportunities of growth. We also believe that if any government deprives people of these rights and oppresses them, the people have a further right to alter it or abolish it. The British Government in India has not only deprived the Indian
people of their freedom but based itself on the exploitation of the masses, and has ruined India economically, politically, culturally and spiritually. We believe, therefore, that India must sever the British connection and attain Purna Swaraj or Complete Independence.”- CBSE Class X - 2025
- Reading Comprehension
- Name the place where Mahatma Gandhi led the movement of cotton mill workers.
- CBSE Class X - 2025
- Nationalism in India
- Name an oil field of India located in the Arabian Sea.
- CBSE Class X - 2025
- Mineral and Energy Resources