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Science Preparation for Engineering Entrance

(2675 Posts)

This thread is dedicated to preparation for Science section of Engineering Entrance exams like IITJEE, RPET, BITSAT, GCET, EAMCET, ISAT, KEAM, WBJEE etc. You may share questions related to all topics from Physics and Chemistry.

Question should not exceed 100 characters.Use add options for multiple choice questions and "Uploadimage/Add related data" for passage text papers.
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I Can't
Shared from Kinetic Theory of Gases on Nov 27, 2019 7:50 AM

A sample of 5.6 litres of helium gas at STP is adiabatically compressed to 0.7 litre. Taking the initial temperature to be T1, the work done in the process is

 
RT1
RT1
RT1
RT1
Please type your answer before submitting.

The initial condition is STP so why is the answer in terms of a variable when it can be replaced with a constant term.

Vivek Adithya
Shared from Rotational Mechanics (Moderate) on Oct 02, 2019 9:36 PM

A solid cylinder of mass M and radius R is mounted on a frictionless horizontal axle, so that it can freely rotate about this axis. A string of negligible mass is wrapped round the cylinder and a body of mass m is hung from the string as shown in the figure. The mass is released from rest.



The tension in the string is

 
mg
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Vivek adithya,,,,,,,,,,,,,,,,,,,,,,

Rajvardhan Jadhav
Posted on Sep 09, 2019 9:50 PM

Among the elements of period III, the atomic size is the maximum for

 
sodium
argon
magnesium
chlorine
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Noble gas has maximum radius

Anushka Mishra
Shared from IUPAC Nomenclature on Aug 28, 2019 5:03 PM

IUPAC name of the organic compound that is written by the following structure is ____.

 
3-cyclohexyl-1-cyclopentylpropane
1-cyclohexyl-3-cyclopentylpropane
3-cyclopentylpropylcyclohexane
3-cyclohexylpropylcyclopentane
propylbicyclo[3.2.3]decane
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Why? it should begin from cyclohexyl end according to alphabetical order

Aashna
Posted on Jul 30, 2019 10:57 AM
Show common data

Question no.16 please answer fast with solutions....

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