Physical Test
Trending Questions
Q. List down any three properties of bases.
Q. List down any three properties of bases.
Q. A neutral solution turns litmus paper from _____ to _______.
- red, blue
- blue, red
- yellow, red
- none of these
Q. Which of the following mixture will turn red litmus to blue?
- NaOH base + tamarind juice
- HNO3 acid + Tamarind juice
- Glass cleanser + washing powder
- HNO3 acid + NaOH base
Q. The pink colour of phenolphthalein in alkaline medium is due to
- OH− ions
- positive ion
- negative ion
- neutral form