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{:("Column A"," Column B"),("a. Highest ...

`{:("Column A"," Column B"),("a. Highest element"," i. Cesium"),("b. Highest metal"," ii. Osmium"),("c. Heaviest metal"," iii. Lithium"),("d. Most reactive metal"," iv. Hydrogen"):}`

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To solve the matching question between Column A and Column B, we will analyze each item in Column A and find the corresponding item in Column B. ### Step-by-Step Solution: 1. **Identify the Highest Element:** - The highest element in the periodic table is Hydrogen (H), which is located at the top of the periodic table in the first period. - **Match:** a. Highest element → iv. Hydrogen 2. **Identify the Highest Metal:** - The highest metal in terms of atomic number in the periodic table is Lithium (Li), which is the first metal in the periodic table, located in the second period. - **Match:** b. Highest metal → iii. Lithium 3. **Identify the Heaviest Metal:** - The heaviest metal based on atomic mass is Osmium (Os), which has an atomic number of 76. - **Match:** c. Heaviest metal → ii. Osmium 4. **Identify the Most Reactive Metal:** - The most reactive metal is Cesium (Cs), which is located in Group 1 (alkali metals) and is known for its high reactivity. - **Match:** d. Most reactive metal → i. Cesium ### Final Matches: - a → iv (Hydrogen) - b → iii (Lithium) - c → ii (Osmium) - d → i (Cesium) ### Summary of Matches: - a. Highest element → iv. Hydrogen - b. Highest metal → iii. Lithium - c. Heaviest metal → ii. Osmium - d. Most reactive metal → i. Cesium ---
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{:("Column A","Column B"),("a. Fluorine"," i. High negative electron gain enthalpy"),("b. Helium"," ii. Most electropositive element"),("c. Chlorine"," iii. Most electronegative element"),("d. Cesium"," iv. Highest ionisation enthalpy"):}

Match the entries in Column A with the appropriate ones in column B. {:(." Callumn A " " . Callumn B "),( " A. s-block " () "a. Radioactive metal"),(" B. Fluorine ()b. Highest first IP value"),(" C. Chlorine ()c. Lanthanides "),(" D. d-block ()d. Highly reactive metals"),(" E. 4f-series () e. Heavy metals "),(" F Helium () f. Always from -1 oxidation "),(" G. Francium () g. Highest electron affinity"),(" H. Noble gases () h. Xero group elements"):}

Knowledge Check

  • Metals are extracted from their ores by different methods depending on their position in the activity series Match the Column-I with Column-II and select the correct option from the codes given below. {:("Column-I ",,"Column-II"),("(A) Highly reactive metals",,"(i) S "),("(B) Calcination",,"(ii) T "),("(C) Electrolytic reduction",,"(iii) P"),("(D) Less reactive metal",,"(iv) Q"),("(E) Roasting",,"(V) Q"):}

    A
    (A)-(v), (B)-(ii), (C)-(iv), (D)-(iii), (E)-(i)
    B
    (A)-(iv), (B)-(ii), (C)-(v), (D)-(iii), (E)-(i)
    C
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    D
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  • Match the entries of Column I with appropriate entries of Column II and chose the correct option out of the four options (a), (b), (c ) and (d) given at the end of each question. {:("Column I","Column II"),("(A) Chlorine","(p) Transition element"),("(B) Helium","(q) Highest electron gain enthalpy"),("(C ) Iron","(r ) Highest ionization enthalpy"),("(D) Lithium","(s) Strongest reducing agent"):}

    A
    A-q, B-r, C-p, D-s
    B
    A-p, B-q, C-r, D-s
    C
    A-r, B-q, C-p, D-s
    D
    A-q, B-p, C-r, D-s

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    A
    a (ii), b (iii), c (i), d(iv)
    B
    a(iv), b(i), c(ii), d(iii)
    C
    a(iii), b(iv), c(ii), d(i)
    D
    a(iii), b(ii), c(iv), d(i)

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