In the manufacture of safety matches, which of the
following material is used to coat thetwo sides of the
match-boxes?1.Yellow phosphorus 2.Red phosphorus 3.Glue
4.Glass powder
Answer Posted / vinay
glass powder, red phosphorus, glue .
When head strikes with the surface, Red phosphorus gets
converted into white ( or yellow phosphorus ) starting
ignition and burning antimony trisulphide on the head of
match stick. Potassium chlorate on the head acts as an
oxidizing agent and sulphur present supports combustion
| Is This Answer Correct ? | 18 Yes | 7 No |
Post New Answer View All Answers
Is MLA consider as Gazetted Officer? Can we issue character certificate from him? And NOC from Police station consider as character certificate for Bank interview. Please answer me early as i need it.
I want know some good coaching classes in Mumbai for drug inspector exam. Please do reply quick.
SAMPLE PAPER OF (ARTHMATIC )STAFF SELECTION COMMISSION
Write short note on t-test?
kindly send group 1 and group 2 previous question papers my id jonmt9@gmail.com
atomic power station in india is built to completely indigenously?
India ke Map me pandechare ko 3 jaghe kyo dikhaya jata hai?
who had an explosive idea and first patented dynamite?
Please send SBI clerical model papers and material to my E- MAil srikanthreddyca@gmail.com
Can somebody pls help me in sharing the PGCET (Karnataka MCA Entrance Exam) question paper. my e-mail id is: shah_nawazzz@yahoo.com Pls share your question papers with me. Your help would be appreciated. Best Regards, Shah
For any function f(x), the inverse function f-1(x)is defined. If f(x)=3e-x , then f-1(x)=? a)ln(3/x) b) ln(x/3) c) ln(x).5 d) (1/3)ln(x)
28,38,49,-,70,77 please give the answer and explin me
CCl4 is inert to water but BCl3 hydrolises in moist air.Why?
dear sir , i got 345 marks in ssc .. is it enough to get an interview call?????????? i m in obc ......
resolution depends mainly on -----