Ionic bond,

Oxidation and reduction, Which of the following reduces the activation ener...

Which of the following reduces the activation energy of a chemical reaction?

Be2+ is isoelectronic with, Be 2+ is isoelectronic with: (1) Mg 2+    ...

Be 2+ is isoelectronic with: (1) Mg 2+                               (2) Na +    (3) Li +                    (4) H + Ans: Li +

Edta, #questionQ1. 0.28gm of CaCO3 was dissolved in HCl and the solution wa...

#questionQ1. 0.28gm of CaCO3 was dissolved in HCl and the solution was made to one litre with distilled water. 100 ml of the above solution required 28 ml of EDTA solution on titra

The bond length of hcl, The interatomic distances in H 2 and Cl 2 molecul...

The interatomic distances in H 2 and Cl 2 molecules are 74 and 198 pm respectively. The bond length of HCl  is : (1) 272 pm                                          (2) 1

What are the compositions of the equilibrated top layers, What are the comp...

What are the compositions of the equilibrated top Layers? Figure is a temperature-composition phase diagram for the binary system of water (A) and phenol (B) at 1 bar. These li

Ethyl chloride reacts with alcoholic potassium hydroxide, Q. Why eliminatio...

Q. Why elimination occurs instead of nucleophilic substitution when ethyl chloride reacts with alcoholic potassium hydroxide? Ans: Ethyl chloride can undergo both nucleophilic sub

The electron density between 1s and 2s orbital is, The electron density be...

The electron density between 1s and  2s orbital is : (1) High (2) Low (3) Zero (4)None of these Ans:Zero

Write the cell reaction, Q. The equilibrium cell potential of the galvanic ...

Q. The equilibrium cell potential of the galvanic cell is found to be E cell , eq   = 1.410 V at 298.15K. The standard cell potential is E cell , eq = 1.360V. (a) Writ

12.23, sodium 4-oxo-2-pentenoate

sodium 4-oxo-2-pentenoate