A married couple adopted a male child. A few years later, twin boys were born to them. The blood group of the couple is AB positive and O negative. The blood group of the three sons is A positive, B positive, and O positive. The blood group of the adopted son is
Answer: A
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Permanent hardness of water may be removed by the addition of
Answer: A
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The confirmatory test for HIV virus causing AIDS is:
Answer: C
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Air is a/an?
Answer: B
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Epoxy resins is used as?
Answer: D
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Newton is the unit of:
Answer: A
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The most important ore of aluminum is
Answer: D
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The weight of an object will be minimum when it is placed at?
Answer: D
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All acids are ____________
Answer: C
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Decibel is the unit of:
Answer: C
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