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786. Which of the following pairs is/are correctly matched ? 1. Homeopathy - Hahnemann 2. Insulin - Banting 3. Blood transfusion - Harvey
A. 1 alone
B. 1 and 2
C. 2 and 3
D. 1, 2 and 3
Explanation:
787. In modern surgery, metal pins are used for holding the broken bones together. This pin is made of :
A. copper
B. stainless steel
C. aluminium
D. titanium
Explanation:
788. Consider the following elements : 1. Copper 2. Gold3. Platinum 4. Silver Which of the above elements exist free in nature ?
A. 1 and 2
B. 2 and 3
C. 1, 2 and 4
D. 3 and 4
Explanation:
789. Anti-freeze is a mixture of
A. acetic acid and water
B. formic acid &water
C. methyl alcohol and water
D. ethyl alcohol and water
Explanation:
790. The number of carbon atoms in the following compounds vary. What is the increasing order in which they are present in the compounds ? 1. Butane 2. Methane3. Ethane 4. Decane
A. 2, 3, 1, 4
B. 1, 2, 3, 4
C. 1, 4, 2, 3
D. 4, 3, 2, 1
Explanation:
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