11 grade chemistry others
Octane number of petrol can be improved by addi
Octane number of petrol can be improved by adding or mixing it with which of the following chemicals ?
- (A) Et₄Pb
- (B) CH₃OC(CH₃)₃
- (C) 1-methyl naphthalene
- (D) Pyrene.
1 Answer
Askiitians Tutor Team
Approved Tutor Answer1 Year agoThe octane number of petrol can be enhanced by adding specific chemicals that improve its resistance to knocking during combustion. Among the options provided, the most effective additive is:
Best Option for Improving Octane Number
(B) CH₃OC(CH₃)₃ - This compound is known as methyl tert-butyl ether (MTBE), which is commonly used to increase the octane rating of gasoline.
Other Options Explained
- (A) Et₄Pb - Tetraethyl lead was historically used but is now banned in many places due to environmental concerns.
- (C) 1-methyl naphthalene - While it has some octane-boosting properties, it is not as effective as MTBE.
- (D) Pyrene - This compound does not significantly improve octane ratings.
In summary, for enhancing the octane number of petrol, methyl tert-butyl ether (MTBE) is the most suitable choice among the given options.
Other Related Questions on 11 grade chemistry others
State the characteristics of hard soap and soft soap
State the characteristics of hard soap and soft soap
11 grade chemistry others
Last Activity: 8 Months ago
Which of the following is likely to be least stable?
- (A) Ca₄₀
- (B) Mn₅₅
- (C) Sn₁₁₉
- (D) Al₃₀
Which of the following is likely to be least stable?
- (A) Ca₄₀
- (B) Mn₅₅
- (C) Sn₁₁₉
- (D) Al₃₀
Grade 1111 grade chemistry others
Last Activity: 1 Year ago
Which of the following is not a Lewis acid?
- A. BF₃
- B. AlCl₃
- C. FeCl₃
- D. PH₃
Which of the following is not a Lewis acid?
- A. BF₃
- B. AlCl₃
- C. FeCl₃
- D. PH₃
Grade 1111 grade chemistry others
Last Activity: 1 Year ago
Which of the following is not a property of compounds?
- (A) They are made up of two or more kinds of atoms.
- (B) They cannot be broken down into two or more simpler substances by physical means but by chemical means only.
- (C) Properties of compounds differ from those of their elements.
- (D) None of the above.
Which of the following is not a property of compounds?
- (A) They are made up of two or more kinds of atoms.
- (B) They cannot be broken down into two or more simpler substances by physical means but by chemical means only.
- (C) Properties of compounds differ from those of their elements.
- (D) None of the above.
Grade 1111 grade chemistry others
Last Activity: 1 Year ago
Which of the following is polar?
- A. NF₃
- B. BF₃
- C. SF₄
- D. SiF₄
Which of the following is polar?
- A. NF₃
- B. BF₃
- C. SF₄
- D. SiF₄
Grade 1111 grade chemistry others
Last Activity: 1 Year ago