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RRB Group D 2025 Mix Test - 89
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  • Question 1/10
    1 / -0.33

    Who, in the 1860s, undertook a thorough investigation of the gas laws expressing the relationships of pressure. temperature and volume in carbon dioxide?

  • Question 2/10
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    In 1928, which equation was derived and combines quantum theory and special relativity to describe the behaviour of an electron moving at a relativistic speed?

  • Question 3/10
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    In 1932, who discovered the positron, a particle described as ‘carrying a positive charge but having a mass of the same order of magnitude as that normally possessed by a free negative electron’?

  • Question 4/10
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    What is the name of the 1,3-isomer (or meta-isomer) of benzenediol with the chemical formula C6H4 (OH)2?

  • Question 5/10
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    What is the other name for solid carbon dioxide?

  • Question 6/10
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    Non-metals, are electronegative. They tend to form bonds by ______ electrons.

  • Question 7/10
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    Which of the following chemical compounds, that is used as a food preservative in some snacks and beverages, retains their natural colour and protects against bacteria?

  • Question 8/10
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    In 1937, who along with Sir Christopher Ingold proposed nucleophilic substitution reactions of alkyl halides and related compounds?

  • Question 9/10
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    Which is the IUPAC group prefix of acyl halides compounds?

  • Question 10/10
    1 / -0.33

    Hardness of water is expressed in terms of:

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