Tag: science & technology

Questions Related to science & technology

Which metal is the most common in the earth's crust?
general knowledge science & technology

  1. Silicon

  2. Aluminium

  3. Iron

  4. Manganese

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Correct Option: B

Sudden change in pressure of which gas in blood causes cramp in deep sea diver coming up abruptly (bends/ decompression sickness/ Caisson disease)?
general knowledge science & technology

  1. Nitrogen

  2. Fluorine

  3. Chlorine

  4. Hydrogen

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Correct Option: A

Element with atomic number 41 has 2 names, what are they?
general knowledge science & technology

  1. Niobium, Columbium

  2. Lutetium, Luthenium

  3. Neodymium, Prasedeomium

  4. Zinc, Zirconium

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Correct Option: A

What does the element Indium get its name from?

general knowledge science & technology

  1. India

  2. River Indus

  3. Color Indigo

  4. Indiana state US

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Correct Option: C

Presence of this element as an ingrediient of water supply pipes in ancient Rome reduced avarage lifetime of Roman by half. Which element?

general knowledge science & technology

  1. Mercury

  2. Lead

  3. Zinc

  4. Cobalt

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Correct Option: B

Which element other than transuranic elements was first created in lab and then found in Nature in trace amounts as by-product of natural radioactivity?

general knowledge science & technology

  1. Columbium

  2. Actinium

  3. Fermium

  4. Technetium

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Correct Option: D

What is the metallic element at the center of a molecule of the green pigment chlorophyll?
general knowledge science & technology

  1. Managanese

  2. Chromium

  3. Magnesium

  4. Calcium

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Correct Option: C

Haemoglobin that causes the red color of blood in vertebrates is formed around Iron atom. What is the metal radical in Haemocyanin in blood of cockroaches?

general knowledge science & technology

  1. Cobalt

  2. Zinc

  3. Copper

  4. Aluminium

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Correct Option: C

In lab, we found a metal element is solid when kept in a beaker, but melts as soon as you take it up on your palm. What metal is it possibly?
general knowledge science & technology

  1. Rhenium

  2. Gallium

  3. Selenium

  4. Promethium

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Correct Option: B

In a massive dying star that form red supergiants, elements higher in atomic number than Hydrogen & Helium also starts fusion due to crushing pressure of the star's own gravitation & form elements of higher atomic number & it continues recursively. Which is the element that is formed last with the maximum atomic number this way & heavier atoms beyoond this are formed in trace amounts only?
general knowledge science & technology

  1. Iron

  2. Prometheum

  3. Barium

  4. Krypton

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Correct Option: A