(A) The stability of the +2 oxidation state increases
(B) Their metallic character decreases
(C) Their atomic size decreases
(D) Their ionization energy increases
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(A) Baking soda
(B) Potash
(C) Washing soda
(D) Plaster of Paris
August 4, 2021
(A) Can be oxidized by heating in air
(B) Consist of the same kind of atoms
(C) Are both soluble in CS2
(D) Can be converted into one another
August 4, 2021
(A) Reduction of Fe3+
(B) Oxidation of Cu2+
(C) Reduction of Cu2+
(D) Reduction of Fe
August 4, 2021
(A) It is a weaker acid than acetic
(B) When its calcium salt is heated, it forms a ketone
(C) It is an oxidizing agent
(D) it is a reducing agent
August 4, 2021
(A) Both bonds are broken
(B) None of above
(C) Pibond is broken
(D) Sigma bond is broken
August 4, 2021
(A) The reaction between iron and oxygen is endothermic.
(B) As compared to iron, aluminium has a greater affinity for oxygen
(C) As compared to aluminium, iron has a greater affinity for oxygen
(D) Refraction between aluminium and oxygen is endothermic
August 4, 2021
(A) There is no change in energy level
(B) They become stationary
(C) There is an increase in energy
(D) They are gaining kinetic energy
August 4, 2021
(A) K
(B) Na
(C) Cs
(D) None
August 4, 2021
(A) Picture printed
(B) The fixation of the picture
(C) The color of the picture
(D) Developing picture
August 4, 2021