SCIENCE
PHYSICAL SCIENCES
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
feels slippery
|
|
|
white color
|
|
|
can only be liquid
|
|
|
tastes sour
|
Detailed explanation-1: -Bases often have a bitter taste and are found in foods less frequently than acids. Many bases, like soaps, are slippery to the touch. Bases also change the color of indicators. Litmus turns blue in the presence of a base, while phenolphthalein turns pink.
Detailed explanation-2: -Bases taste bitter, feel slippery, and conduct electricity when dissolved in water.
Detailed explanation-3: -Baking soda or sodium bicarbonate is a weak base sometimes used to clean glass and wall tiles. Dilute solutions of ammonia are stronger alkaline cleaners and often used for glass cleaning, floor cleaning and other surfaces because it doesn’t leave a residue when dry.
Detailed explanation-4: -Bases do not change the colour of red litmus.