Equivalent weight, Equivalent weight of Ca in Ca3(PO4)2 is

Equivalent weight of Ca in Ca3(PO4)2 is

Energy of second bohr orbit of the hydrogen atom & energy, The energy of se...

The energy of second Bohr orbit of the hydrogen atom is -328 kJ mol-1, hence the energy of fourth Bohr orbit would be: (1) - 41 kJ mol -1 (2) -1312 kJ mol -1   (3) -164

Why nichrome and not copper is used as heating element, Explain why nichrom...

Explain why nichrome and not copper is used as heating element whereas manganin is used as standard resistance? For heating elements, primary requirements are high melting poin

The four quantum number for the valence shell electron, The four quantum nu...

The four quantum number for the valence shell electron or last electron of sodium (Z = 11) is: (1)  n =1, l= 1, m= -1, s= -1/2    (2) n =3, l=0, m=0, s= +1/2   (3) n =3,

Wet test for basic radical, Ask question #Minimureaction with Nam 100 words...

Ask question #Minimureaction with Nam 100 words accepted#

Distinguish by chemical test, primary and secondary nitro compounds chemi...

primary and secondary nitro compounds chemical test..

Number of nodal centres for 2s orbital, Number of nodal centres for 2s orbi...

Number of nodal centres for 2s orbital: (1) 1        (2) 0        (3) 4        (4) 3 Ans: 1

Molarity and normality, When 100 ml of M/10 H2SO4 is mixed with 500 ml of M...

When 100 ml of M/10 H2SO4 is mixed with 500 ml of My/10 NaOH then nature of resulting solution and normality of excess reactant left is

Atomic absorption, why is AAS used to determine lead content in soil

why is AAS used to determine lead content in soil

Thermodaenamics,