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Antiknock Compounds - Characteristics of Hydrocarbons
To decrease the knocking property or to enhance the octane number of a fuel certain chemicals are included in it. These are termed as antiknock compounds. One such type of substance, which is widely used, is tetraethyl lead (TEL). TEL is utilized in the form of following mixture,
TEL = 63%, Ethylene bromide = 26%, Ethylene chloride = 9% and a dye = 2%.
Though, there is a drawback that the lead is deposited in the engine. To eradicate the free lead, ethylene halides are added that combine with lead to form volatile lead halides.
The quantum number which may be designated by s, p, d, and f instead of number is: (1) n (2) l (3) m 1
properties of lanthanides
The number of unpaired electrons in 1s 2 2s 2 2p 4 is: (1) 4 (2) 2 (3) 0 (4) 1 Ans: 2
Synthetic Detergents - Oils and Fats The synthetic Syndets or detergents are substitutes of soaps. They comprise cleansing power as good or better as compared to ordinary soaps
1. CH2=CH-CH3 inpresence of SO2Cl2 (UV light) product..?? 2. (CH3)3CH +Cl2 undergo photo halogenation product..?? 3. 1-propyne react with HCl product is? Solution) 1 SO2Cl2 resu
Polymerization The tendency of many molecules to aggregate and form dimmers (e.g. Al2Cl6 2), extended polymeric, or larger oligomers structures can be regarded as a donor-accep
i am not able to understand difference between emphasising and reflexive pronoun
Electro refining of Copper • Electrolyte - Aqueous copper sulphate solution (acidified) • Cathode - Pure copper metal (thin rod) • Anode - Impure copper metal (thick block) • Disso
How much NaCl is needed to prepare a 0.5 solution of 5 Ltires?
Uses of Polyglycolic acid,Polylactic acid and Polyhydroxybutyrate PGA and PLA (90 : 10) is utilized to form absorbable structure to close an internal of external wound and has
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