The p-Block Elements — practice questions
41 curated practice questions from The p-Block Elements (Chemistry Class 12, CBSE) — 41 easy. Every question includes the final answer free; step-by-step worked solutions with a free account.
- Match the column I with column II and mark the appropriate choice. Column I Column II (A) XeF 4 (i) sp 3 d 2 (B) XeF 6…
- Interhalogen compounds are more reactive than the individual halogens because
- Fill in the blanks: 2 NO + O _ 2 _ (X) (Y) 2 NO _ 2 heat cold N _ 2 O _ 4 X , Y and Z can be described as
- Nitrogen can form only one chloride with chlorine which is NCl 3 whereas P can form PCl 3 and PCl 5 . This is
- Complete the following reactions by filling the appropriate choice. (A) 6XeF 4 + 12H 2 O → 4Xe + 2XeO 3 + (i) + (ii)…
- The decreasing order of boiling points of the following hydrides is
- A black powder when heated with conc. HCl gives a greenish yellow gas. The gas acts as an oxidising and a bleaching…
- The oxyacid of sulphur that contains a lone pair of electrons on sulphur is
- The property of halogens which is not correctly matched is
- Dry SO 2 does not bleach dry flowers because
- Which of the following statements is not correct about the structure of PCl 5 ?
- Which of the following is not correct about xenon hexafluoride?
- Match the list of noble gas compounds in column I with their shapes in column II and mark the appropriate choice…
- The correct order of acidity of oxoacids of halogens is
- Arrange the following in decreasing Lewis acid strength - PF 3 , PCl 3 , PBr 3 , PI 3 .
- Match the column I and column II and mark the appropriate choice. Column I Column II (A) H 3 PO 2 (i) +3 O.S. of P (B)…
- Nitrogen shows different oxidation states ranging from
- In the following question, a statement of assertion is followed by a statement of reason. Mark the correct choice…
- Match the column I with column II and mark the appropriate choice. Column I Column II (A) Sulphur dioxide (i) Detection…
- Covalency of oxygen cannot exceed 2 unlike sulphur which can show +4 or +6 because
- Match the column I with column II and mark the appropriate choice. Column I Column II (A) Thiosulphuric acid (i) H 2 SO…
- Fill in the blanks. The noble gases can form compounds with (i) and (ii) . The mixture of (iii) and (iv) is used for…
- Sulphur trioxide is not directly dissolved in water to form sulphuric acid because
- Match the column I with column II and mark the appropriate choice. Column I Column II (A) ICl 4 – (i) Linear (B) IBr 2…
- Nitrogen forms stable N 2 molecule but phosphorus is converted to P 4 from P 2 because
- An amorphous solid ( X ) burns in air to form a gas ( Y ) which turns lime water milky. This gas decolourises aqueous…
- In XeF 2 , XeF 4 and XeF 6 the number of lone pairs on Xe is respectively
- Fill in the blanks. Conc. H 2 SO 4 chars paper, wood and sugar by removing (i) from them. It is also known as (ii) . It…
- Group 16 elements have lower value of first ionisation enthalpy as compared to group 15 elements because
- Match the column I with column II and mark the appropriate choice. Column I Column II (A) (CN) 2 (i) Hydrogen bonding…
- Which of the following statements is not correct for SO 2 gas?
- Fill in the blanks: (i) Ca 3 P 2 + 6HCl → 3CaCl 2 + ..... p ..... (ii) P 4 + 3NaOH + 3H 2 O → .... q ..... + 3NaH 2 PO…
- One word answers are given for the following. Mark the incorrect answer.
- Why all P – F bonds in PF 5 are not equivalent?
- If chlorine is passed through a solution of hydrogen sulphide in water, the solution turns turbid due to the formation…
- In the following question, a statement of assertion is followed by a statement of reason. Mark the correct choice…
- The comparatively high boiling point of hydrogen fluoride is due to
- A translucent white waxy solid ( A ) reacts with excess of chlorine to give a yellowish white powder ( B ). ( B )…
- Xenon has closed shell configuration but is known to give compounds with fluorine because
- In which of the following sulphur is present in +5 oxidation state?
- In the following question, a statement of assertion is followed by a statement of reason. Mark the correct choice…