Questions and answers by

Aanya

Questions (14)

Two particles A and B has the same mass and are being kept on a rough horizontal table "d" distance apart.B is kept still and A
1. 3 answers
2. 561 views
I really dont know how to do this one...Can someone please explain? Many thanks!!!a travelling microscope is focused on a mark
1. 2 answers
2. 501 views
If sec a=cos a + sin ahow do we prove that cos 2a= [tan(pi/2 - a) ]^2 ?
1. 2 answers
2. 370 views
How do we evaluatelim x-->0 [ cos(2x^3)-1]/[(sin2x^6] I tried the substitution 2@=2x^3 but that leaves a 'x^2' in the
1. 3 answers
2. 456 views
What is the reason for considering N2 has a boiling point lower than O2,because of its low molecular mass.Just curious about
1. 2 answers
2. 454 views
Why N2(g) has a lower boiling point?
1. 3 answers
2. 453 views
What is the reason for the higher ability of Fe3+ , than Fe2+, for being hydrolyzed?Does this has something to do with Fe3+
1. 1 answer
2. 665 views
What would be more acidic? SO2 or SO3?Does this have to do something with the higher oxidation state? And why is that? Or can we
1. 2 answers
2. 2,744 views
If 1) a b 0 , 2) 0 a b , 3)b 0 a =0,Where 1) ,2),3) represents the three rows of a (3*3) matrix which is equal to 0) show that
1. 1 answer
2. 475 views
What compounds(or anions or cations) will make FeCl3 colourless, when it is added to the initial compound(anion or cation)?
1. 4 answers
2. 647 views
How do we find the sum of n terms of the following?Tr= 5^r/[(r+1)(r+2)] I can see there's an arithmetic progression and a
1. 2 answers
2. 491 views
How do we find the value of a without using L'hospitals rule?lim x-->0 [(1+ax) - (1+x)^(1/2)]/(x^2) } =(1/8)
1. 1 answer
2. 404 views
Question : ka1 and ka2 values of H2X is given 1*(10)^-5 M and 1*(10)^-9 M.50cm^3 of 0.2 M KOH and 50 cm^3 of H2X of unknown
1. 7 answers
2. 1,068 views
How do we show that the value of the expression is not less than (b^2 - a^2)?I don't have any idea about proceeding on.Do we
1. 2 answers
2. 361 views