सोमवार, 6 जनवरी 2014

इंग्लिश क्वेश्चन-24


01. Which one of the following is a greenhouse gas? 
a) oxygen
b) hydrogen
c) carbon dioxide
d) nitrogen


02. Fire extinguishers release which of the following gas? 
a) hydrogen
b) nitrogen
c) carbon dioxide
d) carbon monoxide


03. Which one of the following gases present in the upper atmosphere protects the earth from harmful ultraviolet radiations? 
a) carbon dioxide
b) ozone
c) nitrogen
d) oxygen


04. Which one of the following is the main culprit in the thinning of ozone layer in the earth's upper atmosphere? 
a) carbon dioxide
b) chloroflurocarbons
c) nitrogen
d) oxygen


05. Which one of the following is present in the emission from 'unleaded petrol'? 
a) carbon monoxide
b) carbon dioxide
c) hydrocarbons
d) ethylene




06. Which one of the following polymers is widely used for making bullet proof materials? 
a) polyvinyl chloride
b) polyamides
c) polyethylene
d) polycarbonates


07. Which element is present in the earth's crust in highest quantity? 
a) nitrogen
b) hydrogen
c) oxygen
d) carbon




08. The presence of which of the following oxides impart deep blue colour to glass? 
a) cupric oxide
b) iron oxide
c) cobalt oxide
d) nickel oxide


09. The compound of which of the following chemicals is added to the otherwise odourless LPG cooking gas for imparting a detectable smell to the gas? 
a) sulphur
b) fluorine
c) chlorine
d) bromine


10. The bitter or sharp taste of unripe fruits is due to high concentration of 
a) starch
b) organic acids
c) carotenoids
d) lipids


Answer of Above Questions:-

Question No.     Answer
Q-01      →            c) carbon dioxide 
Q-02      →            c) carbon dioxide 
Q-03      →            b) ozone 
Q-04      →            b) chloroflurocarbons 
Q-05      →            c) hydrocarbons 
Q-06      →            d) polycarbonates
Q-07      →            c) oxygen 
Q-08      →            c) cobalt oxide 
Q-09      →            a) sulphur 
Q-10      →            b) organic acids 




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