(d) 4          5        1          3
Ans: (d)
63. Who among the following does not have a chemical element named after him? [CDS2001]
    (a) Albert Einstein
    (b) Enrico Fermi
    (c) Isaac Newton
    (d) Mendeleef
Ans: (c)
64. Which one of the following metals has the highest density? [CDS 2001]
    (a) Gold
    (b) Iron
    (c) Platinum
    (d) Lead
Ans: (c)
65. Match the following:
    Nature of solution      pH
    A. Weakly acidic        1. 1.5
    B. Strongly acidic      2. 12.5
    C.Weakly basic          3. 6.5
    D. Strongly basic       4. 7.5
         A         B        C          D
    (a)  1         3        2          4
    (b)  2         4        1          3
    (c)  3         1        4          2
    (d)  4         3        2          1
Ans: (c)
66. Which one of the following fert1lizers has more nitrogen content? [CDS 2001]
    (a) Urea
    (b) Ammonium Nitrate
    (c) Potassium Nitrate
    (d) Ammonium Phosphate
Ans: (a)
67. Match the following: [CDS 2001]
    A. Smoke       1. Dispersion of gas in liquid
    B. Gel         2. Dispersion of solid in solid
    C. Emulsion 3. Dispersion of liquid in liquid
    D. Foam        4. Dispersion of liquid in solid
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