JEE Chemistry - MCQ Practice Questions
Chemistry carries the highest scoring potential in JEE for anyone who keeps the three branches separate in revision. This set covers physical chemistry numericals, organic reaction mechanisms and named reactions, and inorganic chemistry including periodic trends, chemical bonding and coordination compounds. Organic questions show the mechanism arrow by arrow, so the reasoning transfers to reactions you have not seen before.
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In the extraction of iron from haematite using blast furnace, carbon monoxide acts as:
The standard electrode potential for Zn²⁺/Zn is -0.76 V. In a galvanic cell combining Zn and Cu electrodes, Zn will act as:
The primary use of zinc in brass alloy is to:
Which of the following noble gases has the lowest ionization energy?
The coordination number of Co in [Co(NH₃)₆]³⁺ complex is:
In the extraction of iron from haematite using blast furnace, the reducing agent is primarily:
The hybridization of sulphur in SF₆ molecule is:
The aqueous solution of which salt is most acidic due to hydrolysis?
In the contact process for H₂SO₄ manufacture, the catalyst used is:
The oxidation state of bromine in KBrO₄ is:
Which element shows variable oxidation states primarily due to incomplete d-orbitals?
In the preparation of oxygen by thermal decomposition of KClO₃, the catalyst used is:
In the extraction of iron from its ore using a blast furnace, the temperature at the bottom of the furnace reaches approximately 1900°C. At this temperature, which compound primarily acts as the reducing agent?