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## MCQ (More than One Correct Answer)

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The correct statement(s) related to oxoacids of phosphorous is(are)
JEE Advanced 2021 Paper 2 Online
Consider the following reactions (unbalanced).$$Zn + Hot\,conc.\,{H_2}S{O_4}\mathrel{\mathop{\kern0pt\longrightarrow} \l... JEE Advanced 2019 Paper 2 Offline A tin chloride Q undergoes the following reactions (not balanced)$$Q + C{l^ - } \to XQ + M{e_3}N \to YQ + CuC{l_...
JEE Advanced 2019 Paper 1 Offline
Based on the compounds of group $$15$$ elements, the correct statement(s) is (are)
JEE Advanced 2018 Paper 1 Offline
The compounds(s) which generate(s) $${N_2}$$ gas upon thermal decomposition below $${300^ \circ }C$$ is (are)
JEE Advanced 2018 Paper 1 Offline
The color of the $${X_2}$$ molecules of group $$17$$ elements changes gradually from yellow to violet down the group. T...
JEE Advanced 2017 Paper 1 Offline
The correct statement(s) about the oxoacids, $$HCl{O_4}$$ and $$HClO,$$ is (are)
JEE Advanced 2017 Paper 1 Offline
The nitrogen containing compound produced in the reaction of HNO3 with P4O10
JEE Advanced 2016 Paper 2 Offline
The crystalline form of borax has.
JEE Advanced 2016 Paper 1 Offline
The correct statements regarding (i) HClO, (ii) HClO2, (iii) HClO3 and (iv) HClO4 is (are)...
JEE Advanced 2015 Paper 2 Offline
The correct statement(s) for orthoboric acid is/are
JEE Advanced 2014 Paper 1 Offline
The correct statement(s) about O3 is(are)
JEE Advanced 2013 Paper 2 Offline
Which of the following hydrogen halides reacts with AgNO3(aq.) to give a precipitate that dissolves in Na2S2O3 (aq.) ?...
IIT-JEE 2012 Paper 1 Offline
With respect to graphite and diamond, which of the statement(s) given below is(are) correct?
IIT-JEE 2012 Paper 2 Offline

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A colourless aqueous solution contains nitrates of two metals, X and Y. When it was added to an aqueous solution of NaCl...
JEE Advanced 2020 Paper 1 Offline
$$Y$$ and $$Z$$ are, respectively
JEE Advanced 2017 Paper 2 Offline
$$W$$ and $$X$$ are, respectively
JEE Advanced 2017 Paper 2 Offline
The increasing order of atomic radii of the following group 13 elements is
JEE Advanced 2016 Paper 1 Offline
Under ambient conditions, the total number of gases released as products in the final step of the reaction scheme shown ...
JEE Advanced 2014 Paper 2 Offline
The product formed in the reaction of SOCl2 with white phosphorus is
JEE Advanced 2014 Paper 2 Offline
Concentrated nitric acid, upon long standing, turns yellow-brown due to the formation of
JEE Advanced 2013 Paper 1 Offline
The unbalanced chemical reactions given in List I show missing reagent or condition (?) which are provided in List II. M...
JEE Advanced 2013 Paper 2 Offline
R, S and T respectively, are
JEE Advanced 2013 Paper 2 Offline
P and Q, respectively, are the sodium salts of
JEE Advanced 2013 Paper 2 Offline
Which ordering of compounds is according to the decreasing order of the oxidation state of nitrogen?
IIT-JEE 2012 Paper 1 Offline
25 mL of household bleach solution was mixed with 30 mL of 0.50 M KI and 10 mL of 4 N acetic acid. In the titration of t...
IIT-JEE 2012 Paper 2 Offline
Bleaching powder contains a salt of an oxoacid as one of its components. The anhydride of that oxoacid is
IIT-JEE 2012 Paper 2 Offline
The reaction of white phosphorous with aqueous NaOH gives phosphine along with another phosphorus containing compound. T...
IIT-JEE 2012 Paper 2 Offline

## Numerical

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At 143 K, the reaction of XeF4 with O2F2 produces a xenon compound Y. The total number of lone pair(s) of electrons pres...
JEE Advanced 2019 Paper 1 Offline
Among B2H6, B3N3H6, N2O, N2O4, H2S2O3 and H2S2O8, the total number of molecules containing covalent bond between two ato...
JEE Advanced 2019 Paper 1 Offline
The total number of compounds having at least one bridging oxo group among the molecules given below is _________. {N...
JEE Advanced 2018 Paper 2 Offline
The number of lone pairs of electrons in N2O3 is ___________.
JEE Advanced 2015 Paper 1 Offline
Three moles of B2H6 are completely reacted with methanol. The number of moles of boron containing product formed is ____...
JEE Advanced 2015 Paper 2 Offline
The total number of diprotic acids among the following is: H3PO4, H2SO4, H3PO3, H2CO3, H2S2O7, H3BO3, H3PO2, H2CrO4 and ...
IIT-JEE 2010 Paper 2 Offline

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