Why is it dangerous to have a coal fire burning with doors and windows closed ?2 3493
Why does a diamond cut glass?2 3736
Why is the sea water saline ?9 11599
Why it is advised to boil water before drinking ?1 2875
Why is the percentage of oxygen today the same as it was thousands years ago, even though the whole world inhals it?1 2718
Why would we all suffocate, if all the green plants were killed ?1 2377
Why are substances like caustic soda and calcium chloride called hygroscopic substances ?2 2950
Why is sodium preserved in kerosene oil ?3 11614
Why is a newly made quit warmer than an old one ?1 2279
What causes smoke to curl up into the air ?1 3148
Why does a dog hang out his tongue, when it is hot ?2 3330
Why dies thermos flask keep a hot liquid hot and a cold liquid cold ?1 2612
Why does oil thrown on rough sea make it calmer ?1 2138
Why is heat more oppressive on a damp hot day ?1 2025
Why is dew formed more readily on clear nights than on cloudy ones ?1 2825
Why we use potassium dichromate in control of absorbance in uv region and copper sulphate in control of absorbance in visible region?
what is the relation between Total organic carbon and Chemical Oxygen demand?
What can you contribute to the company?
what are the role of chemistry education in sustainable development
hi i got i 20 from sacred heart university u.s.a.i got good tofel score and my gre is score is very poor.my university requirement is only tofel.i completed my b.pharmacy in 2009 so i got 1 year gap is their chances to reject visa?what i have to do i was very tensed.how to sought out my problem
How BIS Decedied the LSF value 0.66-1.02 with calculation.
SET Examination Previous Questions
can we Consider the Purity threshold and Purity angle in place of peak purity for the specificity test for method verification
which gas is used in preaparation of bit salt
describe the lewis dot structure of Mg2+?
what is difference b/w "regio selectivity" & "sterio selectivity"
Does domestic/household used kerosene oil which is available in blue color (In India) can change its color over the due course of time say 8-10 years if keeping in plastic bottle? If so, in which color it will be turned to change, yellow or transparent or any other color. Please provide me the reply with strong technical approach. Since it has been asked during an interview. Please reply fast. I will be thankful to you if anyone can provide the supporting journals/write-ups/reference to favour of response.
why is their exotherm while addition of reducing agents in reduction reaction?
why we shrink our body during cold
In the calculation of calorific value of any fuel why the latent heat of vap. of water is taken as 587 kj/mol whereas actually it is 540kj/mol?