Which of the following are commonly used as acid-base indicators? 92. What is acid rain and what is its typical pH?

91. The correct option is 3). Both turmeric solution and litmus are commonly used as acid-base indicators. Turmeric turns reddish-brown in basic solutions and remains yellow in acidic or neutral solutions. Litmus paper turns red in acidic solutions and blue in basic solutions. 92. The correct option is 1). Normal rainwater is slightly acidic due to the dissolution of atmospheric carbon dioxide, which forms carbonic acid. Its pH is typically around 5.6. Rainwater with a pH value less than 5.6 is considered acid rain.

Which of the following are commonly used as acid-base indicators? 92. What is acid rain and what is its typical pH?

91. The correct option is 3). Both turmeric solution and litmus are commonly used as acid-base indicators. Turmeric turns reddish-brown in basic solutions and remains yellow in acidic or neutral solutions. Litmus paper turns red in acidic solutions and blue in basic solutions. 92. The correct option is 1). Normal rainwater is slightly acidic due to the dissolution of atmospheric carbon dioxide, which forms carbonic acid. Its pH is typically around 5.6. Rainwater with a pH value less than 5.6 is considered acid rain.

Solved: Which of the following are commonly used as…

The correct option is 3). Both turmeric solution and litmus are commonly used as acid-base indicators. Turmeric turns reddish-brown in basic solutions and remains yellow in acidic or neutral solutions. Litmus paper turns red in acidic solutions and blue in basic solutions.
The correct option is 1). Normal rainwater is slightly acidic due to the dissolution of atmospheric carbon dioxide, which forms carbonic acid. Its pH is typically around 5.6. Rainwater with a pH value less than 5.6 is considered acid rain.

Which of the following are commonly used as acid-base indicators? 92. What is acid rain and what is its typical pH?

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