Which of the following statements about universal indicator is/are true ? 1. It is a mixture of several indicators. 2. It shows different colours at different concentrations of hydrogen ions in solution. 3. It helps to determine the strength of given acid and base in titration. Select the correct answer using the code given below :

Which of the following statements is/are correct? 1. All the bases are alkali. 2. All alkalis dissolve in water. 3. Alkalis are soapy to touch, bitter in taste Select the correct answer using the cod…

Match List- I with List- II and select the correct answer from the code given below the lists. List-I (Acid) A. Lactic acid B. Acetic acid C. Citric acid D. Butyric acid List-II (Source) 1. Lemon 2.…

Match List – I with List – II and select the correct answer from the code given below : List-I (Substances) A. Aspartame B. Freon C. Neoprene D. Benadryl List-II (Applications) 1. Synthetic rubber 2.…

Match List- I with List- II and select the correct answer using the code given below the Lists : List-I (Trade Name) A. Bleaching powder B. Baking soda C. Washing soda D. Plaster of Paris List-II (Ch…

Which one of the following is the correct sequence of change in colours when a turmeric stain on white clothes is scrubbed by soap and then washed with water?