Chemistry Inorganic Chemistry questions from JEE Main 2016.
Assertion: Among the carbon allotropes, diamond is an insulator, whereas, graphite is a good conductor of electricity. Reason: Hybridization of carbon in diamond and graphite are $s{p}^{3}$ and $s{p}^{2}$ respectively.
Find the metallic and ferromagnetic substance.
Identify the correct trend given below: (Atomic No. = Ti : 22, Cr : 24 and Mo : 42)
Identify the incorrect statement :
Identify the reaction which does not liberate hydrogen
Match the items in Column $I$ with its main use listed in Column$\mathrm{II}$: <table class="pyq-table"><tbody><tr><td></td><td>Column$I$</td><td></td><td>Column$\mathrm{II}$</td></tr><tr><td>$A$</td><td>Silica gel</td><td>$i.$</td><td>Transistor</td></tr><tr><td>$B$</td><td>Silicon</td><td>$\mathrm{ii}.$</td><td>Ion-exchanger</td></tr><tr><td>$C$</td><td>Silicone</td><td>$\mathrm{iii}.$</td><td>Drying agent</td></tr><tr><td>$D$</td><td>Silicate</td><td>$\mathrm{iv}.$</td><td>Sealant</td></tr></tbody></table>
The bond angle H-X-H is the greatest in the compound :
The following statements concern elements in the periodic table. Which of the following is true?
The group of molecules having identical shape is:
The non-metal that does not exhibit positive oxidation state is:
The pair having the same magnetic moment is: $[At. No. :Cr=24, Mn=25, Fe=26, Co=27]$
The pair in which phosphorous atoms have a formal oxidation state of + 3 is:
The reaction of zinc with dilute and concentrated nitric acid, respectively, produces:
The species in which the N atom is a state of sp hybridization is:
Which of the following are the transition metal ions responsible for colour in ruby and emerald respectively?
Which of the following atoms has the highest first ionization energy?
Which of the following is an example of homoleptic complex?
Which one of the following complexes shows optical isomerism? (en=ethylendiamine)
Which one of the following complexes will consume more equivalents of aqueous solution of ${\mathrm{AgNO}}_{3}$ ?
Which one of the following species is stable in aqueous solution?