He infers that A is sodium carbonate solution and B is acetic acid. The pH paper turns blue when dipped in solution A, it means A is a strong base having pH 9 and the pH paper turns orange when dipped in solution B, it means B is a strong acid having pH 4.
(i) (a) The order of increasing hydrogen ion concentration is C < A < B. Higher the pH value, lower is the hydrogen ion concentration.
(b) B is most acidic as...
Acetic acid is colourless liquid.
It is miscible/ soluble in water.
On adding a pinch of sodium hydrogen carbonate,
Brisk effervescence is observed.
Evolution of a colourless/ odourless gas.
(b) Photosynthesis occurs between wavelengths of about 400 nm and 750 nm. Red and blue colour wavelength is categories in this wavelength. So, plants absorb these colours. Photosynthesis does not...
