Q. If sodium (Na) is burned in limited supply of oxygen (O₂), the product is a

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Q. Nitrogen forms N₂(g) through

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Q. Nitrogen belongs to which group?

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Q. When crops are harvested, the nitrogen in the harvested portions is

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Q. The reaction between N₂(g) and O₂(g) can occur

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Q. Stunted growth and yellow leaves in a plant are the indicators of

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Q. Plants need Nitrogen (N₂) to aid in the formation of

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Q. Consider the reaction: SiO₂(s) + NaOH(l) → Na₂SiO₃(aq) + H₂O(l). The moles of SiO₂ required to complete the reaction would be

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Q. The oxidation number of sulfur trioxide is

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Q. Oxygen has a higher electronegativity than

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Q. The oxidation number of sulfur dioxide is

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Q. Group 0 elements consist of

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Q. Which option is incorrect about a bloom of algae?

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Q. Tiny droplets of water (sulfuric acid solution) in clouds are

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Q. Sulfur dioxide (SO₂) is

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Q. When acid rain falls in the river and lakes, the pH of water will

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Q. The unit of pressure is

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Q. The concentration of gas is proportional to the

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Q. Respiratory diseases in patients are diagnosed by analyzing partial pressure of gases in

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Q. Partial pressure is equal to total pressure multiply by

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