`(3)/(4)` of 2 h = __________h_________min

H_(3)PO_(2),H_(3)PO_(3) and H_(3)PO_(4) which of them are tribasic acids

Equivalent weight of H_(3)PO_(4) in each of the reaction will be respectively - H_(3)+OH^(-)rarrH_(2)PO_(4)+H_(2) H_(3)PO_(4)+2OH^(-)rarrHPO_(4)^(2-)+2H_(2)O H_(3)PO_(4)+2OH^(-)rarrPO_(4)^(3-)+3H_(2)O

If H is the orthocentre of triangle A B C ,R= circumradius and P=A H+B H+C H , then (a) P=2(R+r) (b) max of P is 3R (c) min of P is 3R (d) P=2(R-r)

Let A_(1), A_(2), A_(3), A_(4) be the areas of the triangular faces of a tetrahedron, and h_(1), h_(2), h_(3), h_(4) be the corresponding altitudes of the tetrahedron. If the volume of tetrahedron is 1//6 cubic units, then find the minimum value of (A_(1) +A_(2) + A_(3) + A_(4))(h_(1)+ h_(2)+h_(3)+h_(4)) (in cubic units).

Select odd one out in the C_2H_2, C_3H_4, C_3H_8, C_4H_6

Under identical conditions of pressure and temperature, 4 L of gaseous moxture ( H_(2) and CH_(4) ) effuses through a hole in 5 min whereas 4 L of a gas X of molecular mass 36 takes to 10 min to effuse through the same hole. The mole ratio of H_(2):CH_(4) in the mixture is:

The rate of decomposition of NH_(3)(g) at 10 atm on platinum surface is zero order . What is rate of formation (in M min^(-1) ) of H_(2) (g) , if rate constant of reaction 2NH_(3(g)) to N_(2)(g) +3H_(2)(g) is 2.0 M min^(-1) ?

Chose the correct acidity orders among the following. (1) H_(3)AsO_(4) (2) H_(2)CO_(3) >H_(3)BO_(3) (3) H_(3)AsO_(4)< H_(3)AsO_(2)

Consider the ionisation of H_(2) SO_(4) as follow" H_(2) SO_(4) + 2H_(2)P rarr 2H_(3) O^(o+) SO_(4)^(2-) The total number of ions furnised by 100 mL of 0.1 M H_(2)SO_(4) will be