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Properties of Detergents - Oils and Fats
Detergents are superior cleansing agents due to following properties.
(i) These can be employed both in soft and hard waters as the calcium and magnesium ions present in hard water form soluble salts along with detergents. Ordinary soap cannot be employed in hard water.
(ii) The detergents' aqueous solution are neutral. Therefore these can be employed for washing all types of fabrics without any damage. The solution or common soap is alkaline and thus cannot be employed to wash delicate fabrics.
Calculate velocity of electron in bohr first orbit of hydrogen atom
Q. What do you mean by Chemical Bonding? Ans. Atoms react chemically by losing, gaining or sharing electrons. Chemical bonds are the attractive forces that hold atoms toge
What is the foundation of classification of cold and hot working? Cold and hot working: Changing the shape of material by extrusion, forging, rolling, drawing involves pl
Uncertainty principle gave the concept of: (1) Probability (2) An orbital (3)Physical meaning of Ψ the Ψ (4)All the above Ans: Probability
WHAT ARE ELEMENTS OF D BLOCK ELEMENTS
Write one reaction each to exemplify the following: (a) Aldol condensation (b) Friedel-Crafts reaction
Q. Place these types of light in order from highest to lowest energy. Infrared light, ultraviolet, radio waves, microwaves, green light? Ans: Highest Energy radio waves
Which one is least ionic in the following compounds: (1) Agcl (2) Kcl (3) Bacl 2 (4) Cacl 2 Ans: Agcl
The electronic configuration of four elements are given in brackets: L (1s 2 , 2s 2 , 2p 1 , ) M (1s 1 , 2s 2 , 2p 5 ) Q (1s 2, 2s 2 , 2p 6 3s 1 ,) R ( 1s 1 , 2s 2 , 2p
Short note on synthetic rubber. S ol. Synthetic rubber: main types of synthetic rubbers: 1. Styrene rubber: Buna-S; Bu-Butadiene; Na=sodium; = Styrene
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