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Q.A mixture of 26ml of H₂ and 24ml of O₂ is exploded.After cooling the tube it contains unreacted.....

1.2 ml of H₂

2.14ml of H₂

3.23ml of H₂

4.11ml of O_2.

Q.cos[(1-w)(1-w²)+(2-w)(2-w²)+......+(10-w)(10-w²)*pi/900=?

1).-1

2).1

3).1/2

4).0

ok...i'll give you the question directly..
Q.2.76g of silver carbonate on strong ignition gives a residue weighing?

I am really stuck with some of the equations and even if i know them i am not able to get the answer at all.can someone give me the stoichiometric equations of the following

1.iron+oxygen

2.silver carbonate on reduction

3aluminium on oxidation

Q.If m,n,p and q are consecutive integers then the value of i^m+iⁿ+i^p+i^q=?

Q.The value of arg(iw)+arg(iw²)=?

the answer is perpendicular bisector to AB

Q.Let 3-i and 2+i be affixes of 2 points A and b in the argand plane and p represents the complex number z=x+iy then the locus of p if mod[z-3+i]=mod[-2-i]=?

1.circle on AB as diameter

2.the line Ab

3.the perpendicular bisector of AB

4.none

plzzz help me yaar!!!!!!!!

Q.If tanh(x+iy)=p+iq then p/q?

actually i was doing very well till my 10th but when my preparation for the competitive exams started i slowly began to drop down,though i feel i can study for longer hours i feel my concentration power has reduced a lot,i feel very sleepy during the class hours and i take ages to prepare a chapter...i have only 3 months left for my competitive exams!lease tell me how to manage my time and how to set a time table for my self/

the answer is given as z lies on the real axis!!!!!!!

well the answer is given as x axis...can someone help me out?

Q.If z-a/z+abar = 1, where Re(a)not equal to o then the locus of z=x+iy is?

1.x axis

2.y axis

3.a circle

4.none

Q.z=x+iy and w=1-iz/z-1 and mod w=1 implies that in the complex plane

1.z lies on the imaginary axis

2.z lies on the real axis

3.z lies on a circle

4.none