NEET
Chemistry
p-Block Elements
Previous Years Questions

Match List-I with List-II : .tg {border-collapse:collapse;border-spacing:0;} .tg td{border-color:black;border-style:solid;border-width:1px;font-fami...
Which of the following reactions is a part of the large scale industrial preparation of nitric acid?
Na2B4O7 $$\buildrel {heat} \over \longrightarrow$$ X + NaBO2 in the above reaction the product "X" is :...
Match List-I with List-II. .tg {border-collapse:collapse;border-spacing:0;} .tg td{border-color:black;border-style:solid;border-width:1px;font-famil...
Which of the following statement is not correct about diborane?
Given below are two statements Statement I : The boiling points of the following hydrides of group 16 elements increases in the order - H2O 2S 2Se 2Te...
Statement I : Acid strength increases in the order given as HF << HCl << HBr << HI.Statement II : As the size of the elements, F, Cl...
Noble gases are named because of their inertness towards reactivity. Identify an incorrect statement about them.
In which one of the following arrangements the given sequence is not strictly according to the properties indicted against it?
Which of the following is not correct about carbon monoxide?
Urea reacts with water to form A which will decompose to form B. B when passed through Cu2+ (aq), deep blue colour solution C is formed. What is the f...
Match the following and identify the correct option. (A) CO(g) + H2(g) (i) Mg(HCO3)2 + Ca(HCO3)2 (B) Temporary har...
Identify the correct statements from the following :(A) CO2(g) is used as refrigerant for ice-cream and frozen food.(B) The structure of C60 contains ...
Which of the following oxoacid of sulphur has $$-$$ O$$-$$ O$$-$$ linkage?
Which of the following is incorrect statement?
Which of the following species is not stable?
Which is the correct thermal stability order for H2E (E = O, S, Se, Te and Po)?
Identify the incorrect statement related to PCl5 from the following :
Match the Xenon compounds in Column-I with its structure in Column-II and assign the correct code : ...
Match the following : .tg {border-collapse:collapse;border-spacing:0;} .tg td{border-style:solid;border-width:0px;font-family:Arial, sans-serif;font...
Which one of the following elements is unable to form MF63– ion?
Which of the following statements is not true for halogens?
It is because of inability of ns2 electrons of the valence shell to participate in bonding that
Match the interhalogen compounds of column-I with the geometry in column-II and assign the correct code. .tg {border-collapse:collapse;border-spacin...
In which pair of ions both the species contain S $$-$$ S bond?
Boric acid is an acid because its molecule
AlF3 is soluble in HF only in presence of KF. It is due to the formation of
Match the compounds given in column I with the hybridisation and shape given in column II and mark the correct option .tg {border-collapse:collapse;...
Which is the correct statement for the given acids?
When copper is heated with conc. HNO3 it produces
Which one of the following orders is correct for the bond dissociation enthalpy of halogen molecules?
Among the following the correct order of acidity is
The stability of +1 oxidation state among Al, Ga, In and Tl increases in the sequence
The variation of the boiling points of the hydrogen halides is in the order HF > HI > HBr > HCl. What explains the higher boiling point of h...
Strong reducing behavior of H3PO2 is due to
The formation of the oxide ion, O2$$-$$(g) from oxygen atom requires first an exthermic and then an endothermic step as shown below: O(g) + e$$-$$ $$... Which of the statements given below is incorrect? Nitrogen dioxide and sulphur dioxide have some properties in common . Which property is shown by one of these compounds , but not by the other? Acidity of diprotic acids in aqueous solutions increases in the order Which statement is wrong? Identify the incorrect statement, regarding the molecule XeO4 : Which of the following structure is similar to graphite? The basic structural unit of silicates is Which of these is not a monomer for a high molecular mass silicone polymer? Which is the strongest acid in the following? Which one of the following molecules contains no$$\pi $$bond? Which of the following does not give oxygen on heating? In which of the following arrangements the given sequence is not strictly according to the property indicated against it? Which of the following statements is not valid for oxoacids of phosphorus? In which of the following compounds, nitrogen exhibits highest oxidation state? Sulphur trioxide can be obtained by which of the following reaction? Which of the following statements is incorrect? Which of the following oxide is amphoteric? Name the two type of the structure of silicate in which one oxygen atom of [SiO4]4$$- is shared?
How many bridging oxygen atoms are present in P4O10?
Which one of the following molecular hydrides acts as a Lewis acid?
The tendency of BF3, BCl3 and BBr3 to behave as Lewis acid decreases in the sequence
Oxidation states of P in H4P2O5, H4P2O6, H4P2O7 are respectively...
The correct order of increasing bond angles in the following species is
The stability of +1 oxidation state among Al, Ga, In and Tl increases in the sequence
The straight chain polymer is formed by
Among the following which is the strongest oxidising agent?
The angular shape of ozone molecule (O3) consists of
Which of the following oxidation states are the most characteristic for lead and tin respectively?
Which of the following anions is present in the chain structure of silicates?
Which one of the following orders correctly represents the increasing acid strengths of the given acids?
Which of the following is the most basic oxide?
The correct order regarding the electronegativity of hybrid orbitals of carbon is
The electronegativity difference berween N and F is greater than that between N and H yet the dipole moment of NH3 (1.5D) is larger than that of NF3 (...
Which one of the following orders is not in accordance with the property stated against it?
In which of the following molecules are all the bonds are not equal?
Which one of the following oxides is expected to exhibit paramagnetic behaviour?
Which of the following would have a permanent dipole moment?
What is the correct relationship between the pH of isomolar solutions of sodium oxide, Na2O (pH1), sodium sulphide, Na2S (pH2), sodium srlenide, Na2Se...
Which one of the following orders correctly represents the increasing acid strengths of the given acids?
Which one of the following statements about the zeolite is false?
Among K, Ca, Fe and Zn, the element which can from more than one binary compound with chlorine is
Which one of the following compounds is not a protonic acid?
Which of the following statement is true?
Which of the following order is wrong?
Correct order of 1st ionization potential among following elements Be, B, C, N, O is
Which compound is electron deficient?
Which compound has planar structure?
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