General Chemistry Interview Questions
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Why is it dangerous to have a coal fire burning with doors and windows closed ?

2 4276

Why does a diamond cut glass?

2 4373

Why is the sea water saline ?

9 12798

Why it is advised to boil water before drinking ?

1 3375

Why is the percentage of oxygen today the same as it was thousands years ago, even though the whole world inhals it?

1 3130

Why would we all suffocate, if all the green plants were killed ?

1 2643

Why are substances like caustic soda and calcium chloride called hygroscopic substances ?

2 3619

Why is sodium preserved in kerosene oil ?

3 12767

Why is a newly made quit warmer than an old one ?

1 2579

What causes smoke to curl up into the air ?

1 3482

Why does a dog hang out his tongue, when it is hot ?

2 3661

Why dies thermos flask keep a hot liquid hot and a cold liquid cold ?

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1 2915

Why does oil thrown on rough sea make it calmer ?

1 2411

Why is heat more oppressive on a damp hot day ?

1 2264

Why is dew formed more readily on clear nights than on cloudy ones ?

1 3115

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Un-Answered Questions { General Chemistry }

Cholesterol is a compound suspected of causing hardening of the arteries. The formula of cholesterol is C27H46O. a. A sample of cholesterol is isolated from the arterial lining of a 60-year-old American male. What is the formula of this compound? b. Cholesterol is extracted from a chicken’s egg. What is the formula of this compound?


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hi i got i 20 from sacred heart university u.s.a.i got good tofel score and my gre is score is very university requirement is only tofel.i completed my in 2009 so i got 1 year gap is their chances to reject visa?what i have to do i was very to sought out my problem


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?


SET Examination Previous Questions


what is the relation between Total organic carbon and Chemical Oxygen demand?


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?


what is difference b/w "regio selectivity" & "sterio selectivity"


How BIS Decedied the LSF value 0.66-1.02 with calculation.


What is difference between LVT and RVT Viscometer?


can we Consider the Purity threshold and Purity angle in place of peak purity for the specificity test for method verification


describe the lewis dot structure of Mg2+?


Why we use potassium dichromate in control of absorbance in uv region and copper sulphate in control of absorbance in visible region?


Why USP put two methods for tapped density? When I should use each one?