Chemistry question answer for competitive exam

0
10
views

We have collected some important Chemistry question answer for competitive exam .

these question and answer must be helpful for you.

chemistry question answer for competitive exam
chemistry question answer for competitive exam

Chemistry question answer for competitive exam

  1. Brass gets discolored in air because of the presence of which of the following gases in air? – Hydrogen sulphide
  2. Which of the accompanying is a non metal that remaining parts fluid at room temperature? – Bromine
  3. Chlorophyll is a normally happening chelate compound in which focal metal is? – magnesium
  4. The gas typically filled in the electric bulb is – nitrogen
  5. Washing soda is the regular name for – Sodium carbonate
  6. Quartz gems ordinarily utilized as a part of quartz tickers and so forth is artificially – silicon dioxide
  7. Which of the gas isn’t known as green house gas? – Hydrogen
  8. What is Bromine ? – a red liquid
  9. The hardest substance accessible on earth is ? – Diamond
  10. The assortment of coal in which the store contains unmistakable hints of the first plant material is? -peat
  11. Which of the accompanying is utilized as a lubricant? – Graphite
  12. The idle gas which is substituted for nitrogen noticeable all around utilized by remote ocean jumpers for breathing, is? – Helium
  13. The gases utilized as a part of various kinds of welding would incorporate? – oxygen and acetylene
  14. The property of a substance to retain dampness from the air on presentation is called? – Deliquescent
  15. In which of the accompanying exercises silicon carbide is utilized? – Cutting very hard substances
  16. The normal saltiness of ocean water is? – 3.5%
  17. At the point when an iron nail gets rusted, Iron oxide is framed? – With increase in the weight of the nail
  18. Electrifies press sheets have a covering of -zinc
  19. Among the different allotrope of carbon – Diamond is the hardest, graphite is the softest
  20. The gathering of metals Fe, Co, Ni may best called as – Transition metals
  21. Substantial water is – Deuterium oxide
  22. The substance (ethyl mercaptan) added to the generally unscented LPG cooking gas for granting a discernible scent to the gas is a compound of – sulfur
  23. The component regular to all acids is – Hydrogen

Chemistry question answer for competitive exam

Also Check these Links –Top 5 android apps of April 2018

Top 6 Android Apps For Competitive Exams

LEAVE A REPLY

Please enter your comment!
Please enter your name here