Which of the following is macronutrient ?
Correct answer: C. H
- A. Cu
- B. Cl
- C. H
- D. Zn
Explanation
Hydrogen is a macronutrient because plants require it in relatively large amounts as part of water and organic compounds. Copper, chlorine and zinc are micronutrients, needed only in small amounts. Students may choose chlorine because plants need chloride ions, but required function does not make it a macronutrient.
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About Periodic Properties and Trends
Periodic properties arise from electron configuration and effective nuclear charge, producing trends in atomic and ionic radius, ionization energy, electron affinity, electronegativity, metallic character and reactivity. Comparisons run across periods and down groups, with attention to common exceptions. The topic also relates these trends to the behavior of s-block and p-block elements.
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