Show the occurrence of the f-block element, Q. Show the Occurrence of the f...

Q. Show the Occurrence of the f-block element? Apart from promethium which is unstable and is found in traces in uranium ores, all the lanthanides usually occur together. Altho

What is percent error, Q. What is Percent error? Quantities measured th...

Q. What is Percent error? Quantities measured throughout an experiment are called experimental values. The dissimilarity between an accepted value and an experimental value is

Ether., how yield of ether is highest when the halide ion is displased from...

how yield of ether is highest when the halide ion is displased from a primary rather than secondary or tertiary halide?

Dehydration., the complete equation for forming a peptide bond through dehy...

the complete equation for forming a peptide bond through dehydration

The number of unpaired electrons, The number of unpaired electrons in  1s 2...

The number of unpaired electrons in  1s 2 2s 2 2p 4   is: (1) 4        (2) 2        (3) 0        (4) 1 Ans: 2

Chemical kinetics, the decomposition of nh3 on a platinum surface is a zero...

the decomposition of nh3 on a platinum surface is a zero order reaction. what are the rates of production of n2 and h2 if k+2.5*10-4 mol-1 lsec-1?

The molecular formula of chloride of a metal m, The molecular formula of ch...

The molecular formula of chloride of a metal M is  MCl3 The formula of its carbonate would be: (1) MCO 3                                                    (2) M 2 (Co

Define product development, Q. Define product development? Product deve...

Q. Define product development? Product development is a future oriented practice and an effort to foresee the future needs of the market place and to translate this informatio

Thermodaenamics,

stability of carbocations in benzene ring, how to find stability of carboc...

how to find stability of carbocations in benzene ring..??? and how how to find optically inactive isomers  ??? (say of--C2H5Cl) how to find the weakest C-X (carbon-halogen bond in