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{:(,"Column-I",,,"Column-II"),(,"(Elemen...

`{:(,"Column-I",,,"Column-II"),(,"(Element)",,,"(Property)"),((A),Mg,,(P),"s-block element"),((B),Be,,(Q),"Bridge element"),((C),Sc,,(R),"Transition element"),((D),N,,(T),"Alkaline earth elements"):}`

Text Solution

Verified by Experts

The correct Answer is:
PQT
PT
R
P
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{:(,"Column-I",,"Column-II"),("(A)","Sea water","(p)","Compound"),("(B)","Phosphorus","(q)","Heterogeneous mixture"),("(C)","Distilled water","(r)","Solution"),("(D)","Concrete","(s)","Element"):}

Why are transition elements known as d-block elements ?

Knowledge Check

  • Match the properties given in Column I with the reansition elements given in Column II and select the correct answer using the code below the lists : {:(,"Column"I,,"Column"II,),(,("Property"),,("Transition elements"),),((a),"Highest oxidation state",,(p)" "Cr.,),((b),"Highest density",,(q)" "Os.,),((c ),"Element with maximum unparied electrons.",,(r)" "Tc.,),((d),"Radioactive transition element",,(s)" "Cu.,):} Code :

    A
    `{:(,"(a)","(b)","(c)","(d)"),(,q,q,p,r):}`
    B
    `{:(,"(a)","(b)","(c)","(d)"),(,q,p,s,r):}`
    C
    `{:(,"(a)","(b)","(c)","(d)"),(,p,q,r,s):}`
    D
    `{:(,"(a)","(b)","(c)","(d)"),(,r,s,q,p):}`

  • {:(,,"Column I ",,"Column II "),((A) ,,"Noble gas ",,(p) [Xe] 5d^(1) 6s^(2) ),((B) ,,"Representiative elemetn ",,(q) [Rn] 6d^(2) 7s^(2)),((C ),,"Transition element ",,(r ) 1s^(2)),(( D) ,,"Inner transition element ",,( s) [Kr] 5s^(2) ):}

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

  • Which block elements are called transition elements ?

    A
    s - block
    B
    p - block
    C
    d - block
    D
    f - block

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    {:("Column A"," Column B "),("a. s & p-block"," i. Inner transition elements"),("b. d-block"," ii. s-block elements"),("c. f-block"," iii. Transition elements"),("d. group-1 and group-2" ,"iv. Representative elements"):}

    An element with atomic number 30 is a (A) Representative element (B) Transition element (C) d-block element (D) -block element

    Match the properties givens in Column I with the metals given in Column II. {:(,"Column I ( Porperty)",,"Column II(Metal) "),((i),"An element which can show"+8"oxidation state",(a),Mn),((ii),"3d block element that can show upto "+7"oxidation state",(b),Cr),((iii),"3d block element with highest melting point",(c ) ,Os),(,,(d),Fe):}

    {:(,"Column I ","Column II "),("(A)" ,"He, Ne , Ar","(p) Representative elements"),("( B)" ,"Fr, Ra, Ar","(q) Lanthanoids "),("(c )" ,"Ce, Gd, Yb","( r) Noble gases "),("(D)" ,"Rb, Ga, C1","(s ) Radioactive elements "):}

    {:(,"Column I",,"Column II"),((A),"An element with +1 stable oxidation state",(p),"lead"),((B),"A neutral oxide",(q),"Dry ice"),((C),"An element with stable +2 oxidation state",(r),"Thallium"),((D),"Solid carbon dioxide",(s),"Carbon monoxides"):}

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