p-Block Elements — practice questions
61 curated practice questions from p-Block Elements (Chemistry NEET, NTA Exams) — 26 easy, 16 medium, 19 hard. Every question includes the final answer free; step-by-step worked solutions with a free account.
- Taking stability as the factor, which one of the following represents correct relationship?
- Chlorine on reaction with hot and concentrated sodium hydroxide gives:
- Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A)…
- Given below are two statements: Statement I : H 3 BO 3 is tribasic acid. Statement II : Metal borides are used in…
- Identify the correct formula of 'oleum' from the following
- In the presence of which of the following species, boric acid can be titrated against sodium hydroxide solution?
- Which of the following isomers of phosphorus are thermodynamically the least and the most stable?
- Heating an aqueous solution of aluminium chloride to dryness will give:
- P 4 O 10 is not used to dry NH 3 gas because:
- In 1984, Bhopal Gas Tragedy was happened due to leakage of methyl isocyanate. Tragedy took place because the gas…
- Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A)…
- Which of the following electronic configuration represents noble gas?
- Bromine can be liberated from potassium bromide solution by the action of:
- Aluminium is usually found in +3 oxidation state. In contrast, thallium exists in +1 and +3 oxidation state. This is…
- which one of the following pairs is obtained on heating ammonium dichromate?
- Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A)…
- Molecules of a noble gas do not possess vibrational energy because a noble gas:
- What happens when sugar is treated with conc. H 2 SO 4 ?
- The reaction of P 4 with X leads selectively to P 4 O 6 . The X is:
- Which of the following compounds is used in cosmetic surgery?
- Which of the following oxoacids of phosphorus has strongest reducing property?
- The element that shows greater ability to form pπ-pπ multiple bonds, is:
- In the brown ring test, the brown colour of the ring is due to:
- Which is the correct thermal stability order for H 2 E (E=O, S, Se, Te and Po)?
- A pale blue liquid obtained by equimolar mixture of two gases at -30 °C is:
- Select the element (M) whose trihalides cannot be hydrolysed to produce an ion of the form [M(H 2 O) 6 ] 3+ .
- Which one of the following elements is unable to form MF _ I ^ 3- ion?
- The stability of +1 oxidation state increases in the sequence:
- Dinitrogen and dioxygen are main constituents of air, but these do not react with each other to form oxides of nitrogen…
- Which of the following oxide does not form acidic aqueous solution?
- One mole of calcium phosphide on reaction with excess water gives:
- The relative stability of +1 oxidation state of group 13 elements follows the order:
- Given below are two statements: Statement I : Silicones are hydrophobic in nature. Statement II : Silica in its normal…
- For making good quality mirrors, plates of float glass are used. These are obtained by floating molten glass over a…
- Identify the correct statements from the following: CO 2 (g) is used as refrigerant for ice-cream and frozen food. The…
- Which of the following statement is incorrect for noble gases?
- Amongst the trihalides of nitrogen, which one is the least basic?
- What are the products obtained when ammonia is reacted with excess chlorine?
- Excess of PCl 5 reacts with conc. H 2 SO 4 giving:
- Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A)…
- The stability of dihalides of Si, Ge, Sn and Pb increases steadily in the sequence:
- I 2 dissolves in KI solution due to the formation of:
- Which of the following oxoacids of sulphur has -O-O- linkage?
- Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A)…
- Choose the correct acidity orders among the following 1) H _ 3 AsO O _ 4 H _ 3 BO _ 3 3) H _ 3 AsO _ 4 < H _ 3 AsO _ 2
- Which one of the following reaction of xenon compounds is not feasible?
- From the following information, X+ H _ 2 SO _ 4 Y(a colourless and irritating gas ) Y+ K _ 2 Cr _ 2 O _ 7 + H _ 2 SO _…
- In the manufacture of bromine from sea water, the mother liquor containing bromide is treated with:
- Assertion: The physical properties of natural rubber can be improved by vulcanisation. Reason: Neoprene is the monomer…
- Aqueous solutions of hydrogen sulphide and sulphur dioxide, when mixed together, yields:
- Consider the following reaction sequence, K _ 4 [ Fe ( CN )_ 5 ]+ ( CONC ) H _ 2 SO _ 4 + H _ 2 O ~K _ 2 5O _ 4 + FeSO…
- Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A)…
- The following acids have been arranged in the order of decreasing acid strength, identify the correct order. ClOH (I)…
- Distillation of concentrated HNO 3 with phosphorus pentoxide produces:
- The correct order of the thermal stability of hydrogen halides (H - X) is:
- Given below are two statements. One is labelled as Assertion and the other is labelled as Reason. STATEMENT-1…
- Consider the following statements and which of the following are correct? SiO _ 4 ^ 4- on hydrolysis with acid or H 2 O…
- The pair that contains two P-H bonds in each of the oxoacids is:
- Consider the following reaction: array l Br _ 2 + (hot conc) OH ^ - X+Y+ H _ 2 O X + Y + H ^ + Z + H _ 2 O array…
- Which of the following statements regarding sulphur is incorrect?
- Correct statements among a to d regarding silicones are: They are polymers with hydrophobic character They are…