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Among 1,2,4,5-tetrachlorobenzene and 1,2,3,4-tetrachlorobenzene which have high melting point & which have high boiling point?

what is Y?

u can refer fiitjee RSM.

sure akriti ,u can see it tomorrow because vi was busy today.

hi aspired have u seen above?

ans is [1/2,1]

KE=P²/2M PINCREASES BY 100% MEANS FINAL MOMENTUM=2P FINAL KE=4P²/2M=4(INITIAL KE) THEREFORE % INCREASE IN KINETIC ENERGY IS (4-1)/1*100=300 HENCE THE ANS=300

Hai priyanka,for law of conservation of linear momentum to be valid the following two conditions must be satisfied. 1)net external force acting on the system must be zero.(the system is isolated)2)no particles should leave or enter into the system.(the system is closed) THEREFORE FOR ISOLATED AND CLOSED SYSTEMS LAW OF CONSERVATION OF LINEAR MOMENTUM IS VALID.I HOPE U UNDERSTOOD. CHEERS....

1/2d(x²+y²)+d(tan^-1y/x)=0 on integrating we get x²+y²+2(tan^-1y/x)=0 cheers....

For distributing 6n identical balls in the three identical boxes such that no box remains empty the no. of ways are 3n²+3n+1(for solution u can refer FIITJEE rsm p&c) according to ur problem n=5 ans=91

THANKYOU,SIR.

no. of derangements=

5(1/

2-1/

3+1/

4-1/

5)=60-20+5-1=44 I HOPE U R CLEAR.CHEEEERS.........

experts or anyone please help me.

The dissociation pressure of solid ammonium hydrosulphide(NH₄HS) at 27⁰c is 60cm.what will be the total pressure when it dissociates at same temperature in presence of NH₃ at a pressure of 45cm.

fraction of car floating=density of car/density of water density of car=1000/4=250 ans=250/1000=0.25