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Q. |
One property of ammonia is – |
A. | It is insoluble in water |
B. | it is a odourless gas |
C. | It is a yellowish gas |
D. | Its aqueous solution turns red litmus blue |
Answer» D. Its aqueous solution turns red litmus blue | |
Explanation: The main use of litmus is to test whether a solution is acidic or basic. For instance, ammonia gas, which is alkaline, colours the red litmus paper blue. |
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