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The ozone layer or ozone shield refers to a region of Earth's stratosphere that absorbs most of the Sun's ultraviolet (UV) radiation. It contains high concentrations of ozone (O3) relative to other parts of the atmosphere, although still very small relative to other gases in the stratosphere

Vulcanizer is the removal of double bend in a chemical reaction. Option A,B,D can not be removed by vulcanizer

HeSO4 is the acid used in the electrolysis of water. Option A,B,D are concentrated acid and they will react with the water

Sublimation is the transformation of solid gaseous state without passing through the liquid state. Options A,C,D do not show case these character of sublimation as they do not bye pass states. They are in a particular order

Efflorescence is a process of long exposure to the atmosphere which favors salt loss of water. Options B, C, D are not related to loss of water

Ozone means Oz as the atomicity is 3. Option A,B,D cannot give ozone because their atomicity is not 3

Ionization energy: The amount of energy required to remove an electron from an isolated atom or molecule. Trends down group : Ionization energy decreases down the group. This is due to the shielding or screen effect of the outer electrons from the nucleus. The attraction is weaker and they are more easily removed. Helium and radon both belong to group 8 which are called noble gases. Helium (He) has the highest ionization energy and Radon (Rn) has the lowest ionization energy.

Vander Waals are the weakest attractive forces that exist between two molecules. Option A,B,C are not weak forces because the force attraction that exist between their interested molecule are very strong

Sulphur is an element that burns with a strongly explosive smell, as a result it is explosive smell

Rays travels in straight lines and finds its way through any opening available. It could be refracted, reflected or transmitted based on any obstacle. Option A,B,C are not the reason why the cathode are coasted shadows

No expanded working has been attached for this question yet. The verified answer is Option C.

A is the correct answer. Tartaric acid is found in cream of tartar, which is used in cooking candies and frostings for cakes. Tartaric acid is also found in baking powder, where it serves as the source of acid that reacts with sodium bicarbonate (baking soda)

V = 1/P cross multiply K = VP V1P1 = V2V2 For a fixed amount of an ideal gas kept at a fixed temperature, pressure and volume are inversely proportional. Or Boyle's law is a gas law, stating that the pressure and volume of a gas have an inverse relationship, when temperature is held constant. The equations supports only Boyle’s law. Option A,C,D are not in support of the equation...

\(\frac{V_{1}}{T_{1}}\) = \(\frac{V_{2}}{T_{2}}\) \(T_{1}\) = 3 + 273 = 276K \(T_{2}\) = 18 + 273 = 291K \(V_{1}\) = \(92cm^{3}\) \(V_{2}\) = ? \(V_{2}\) = \(\frac{V_{1}T_{2}}{T_{1}}\) =\(\frac{92 \times 291}{276}\) = \(97.0cm^{3}\)

2.0 mole of Q3+ ions require the largest quantity of electricity for discharge at an electric. option B,C,D are all carrying a smaller quantity of electricity which not be proven for ant discharge