Which of the following statements regarding coal are correct?(a) Coking coals do not soften on heating(b) Non coking coals soften on heating(c) Coke is an oxidizing agent(d) Coal is a hydrogen deficient hydrocarbonThis question was posed to me in an online interview.My query is from Natural Products in chapter Natural Products of Chemical Technology

Which of the following statements regarding coal are correct?(a) Cokin

1.	Which of the following statements regarding coal are correct?(a) Coking coals do not soften on heating(b) Non coking coals soften on heating(c) Coke is an oxidizing agent(d) Coal is a hydrogen deficient hydrocarbonThis question was posed to me in an online interview.My query is from Natural Products in chapter Natural Products of Chemical Technology
Answer» The correct CHOICE is (d) Coal is a HYDROGEN deficient hydrocarbon To ELABORATE: Coking coals soften and non coking coals do not soften on heating. The product FORMED during heating of non coking coal is called char. COKE is a reducing agent as it is hydrogen deficient hydrocarbon.

Discussion

No Comment Found

Related InterviewSolutions

Thermodynamically dehydrogenation reactions are favorable at ___________(a) High temperature, low pressure(b) Low temperature, high pressure(c) High temperature, high pressure(d) Low temperature, low pressureI got this question in a national level competition.This interesting question is from Natural Products in chapter Natural Products of Chemical Technology
Increase in pressure during catalytic cracking process ____________ octane number.(a) Decreases(b) Increases(c) Doesn’t effect(d) Remains sameI had been asked this question during a job interview.My question is taken from Natural Products topic in division Natural Products of Chemical Technology
Which of the following statement is wrong regarding Catalytic reformates?(a) They contain no olefins(b) They are resistant to oxidation(c) They have low sulfur and gum content(d) They are low in octane numberThe question was posed to me by my school teacher while I was bunking the class.This interesting question is from Natural Products topic in portion Natural Products of Chemical Technology
Which of the following is not a distinctive feature of catalytic cracking process?(a) Less polymerization(b) High quality petrol(c) Less coke production(d) Less IsomerizationThe question was asked by my college director while I was bunking the class.The origin of the question is Natural Products in division Natural Products of Chemical Technology
Which catalyst doesn’t have high tolerance towards S when it is reactivated with steam in catalytic cracking process?(a) Iron(b) Chromium(c) Copper(d) NickelI had been asked this question in an interview.I need to ask this question from Natural Products in section Natural Products of Chemical Technology
The inlet speeds of coal dust and oxygen blown into gasification chamber are _________ than the velocity of flame propagation(a) Higher(b) Lesser(c) Greater than or equal to(d) Less than or equal toThis question was posed to me in an international level competition.Question is taken from Natural Products in section Natural Products of Chemical Technology
Fillers are added to reduce water penetration into paper products.(a) True(b) FalseThe question was asked during an online interview.I'm obligated to ask this question of Natural Products topic in chapter Natural Products of Chemical Technology
Cottage scale group of grain processing includes _________________(a) Bakeries(b) Oil mills(c) Rice hullers(d) Flour grindersThis question was addressed to me at a job interview.This intriguing question comes from Natural Products topic in division Natural Products of Chemical Technology
Which of the following is a natural resin?(a) Alkyds(b) Vinyl resins(c) Silicone resins(d) RosinThe question was posed to me by my college director while I was bunking the class.My doubt is from Natural Products topic in section Natural Products of Chemical Technology
Resins are not used in _____________(a) Oil-based paints(b) Water based paints(c) Varnishes(d) LacquersThe question was asked in quiz.Enquiry is from Natural Products in portion Natural Products of Chemical Technology

Discussion

No Comment Found

Related InterviewSolutions

Reply to Comment