Everyday Science MCQs

5120 MCQs  (Page 448 of 512)

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In electrolysis of NaCl the product obtained at cathode is_______.
A. Sodium ions
B. Chloride ions
C. Both
D. Remain at the bottom of the cell
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During electrolysis of Water, the product obtained at cathode is ___________?
A. Hydrogen gas &water
B. Oxygen gas &water
C. Only oxygen
D. Only water
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The equation that represents the relationship of Faraday’s first law of electrolysis is _______?
A. Z=at
B. W=zat
C. W=z/at
D. Z= at/m
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In Dry cell, cathode is made up of_______?
A. Zinc
B. Carbon (graphite)
C. Zncl²
D. Mno²(pyrolusite)
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Which of the following statements is true when we see ‘rainbow’ ?
A. We face sun and raindrops
B. The sun remains behind us and we face raindrops
C. In light rainfall, we face sun
D. The sky remains clear and the sun is at lower position in the sky
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Which bacterium is used in the production of insulin by genetic engineering?
A. Saccharomyces
B. Rhizobium
C. Escherichia
D. Mycobacterium
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——– is used as a vector for cloning into higher organisms.
A. Retrovirus
B. Baculovirus
C. Salmonella typhimurium
D. Rhizopus nigricans
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PCR technique was invented by__________?
A. Karry mullis
B. Boyer
C. Sanger
D. Cohn
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Which is a genetically modified crop?
A. Bt-cotton
B. Bt-brinjal
C. Golden rice
D. All
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The vaccines prepared through recombinant DNA technology are_____________?
A. Third generation vaccines
B. First-generation vaccines
C. Second-generation vaccines
D. None of these
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Word of the Day
28 Jul
Fragile
(of an object) easily broken or damaged.
نازک، کاغذی، آسانی سے ٹوٹ جانیوالا

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