Which of the following metals reacts violently with water?

A. Mercury

B. Sodium

C. Calcium

D. Magnesium

Please do not use chat terms. Example: avoid using "grt" instead of "great".

You can do it
  1. Temperature attained in soldering of metals is about __________ °C.
  2. Reduction in the grain size reduces the __________ of the material.
  3. Capacity & power requirement for an air compressor working at high altitude compared to sealevel will…
  4. Resistance of an electrical conductor is proportional to its (where, l = length and A = cross-sectional…
  5. Function of fusible plug in a boiler is to
  6. LVDT used for displacement measurement is a/an __________ transducer.
  7. High relative humidity decreases the evaporative process and as the temperature is increased, the relative…
  8. Fibre reinforced plastic (FRP) are
  9. Lead is added to 60:40 brass primarily to improve
  10. The leaching solvent used in Baeyer's process for the purification of bauxite is
  11. Unit of surface tension in S.I. unit is
  12. Fatigue resistance of a material is measured by the
  13. In the X-ray radiography technique, the tube voltage for thicker plates as compared to thin plates,…
  14. Principal alloying element in Elinvar (used for making hair springs for watches) is
  15. Which of the following can be manufactured using powder metallurgy techniques?
  16. A metal having a Poisson's ratio = 0.3 is elastically deformed under uniaxial tension. If the longitudinal…
  17. If a nuclear reactor produces more fissile nuclear fuel than it consumes, then it is called a __________…
  18. 'GASOHOL' widely used in Brazil as a motor fuel is a mixture of alcohol and
  19. Which of the following is an ore dressing operation?
  20. Closeness of packing is maximum in case of __________ crystal lattice.
  21. Material of construction of foundry crucible is
  22. Lap joints are preferred over butt joints in soldering/brazing, because these joints are
  23. Which of the following is not used as a bearing material?
  24. Tin based white metals are used, where bearings are subjected to
  25. The order of a chemical reaction
  26. The expected efficiency of a single riveted lap joint is of the order of 50%. If the thickness of the…
  27. Tesla metre per ampere (T. m/A) is the unit for the measurement of
  28. In a forced draft cooling tower, water is cooled from 95 to 80°F by exposure to air with a wet bulb…
  29. Breakeven point represents the condition, when the company runs under no profit no loss condition. In…
  30. Which of the following phenomenon/ phenomena is/are diffusion controlled?