Self Studies

p-Block Elements Test - 26

Result Self Studies

p-Block Elements Test - 26
  • Score

    -

    out of -
  • Rank

    -

    out of -
TIME Taken - -
Self Studies

SHARING IS CARING

If our Website helped you a little, then kindly spread our voice using Social Networks. Spread our word to your readers, friends, teachers, students & all those close ones who deserve to know what you know now.

Self Studies Self Studies
Weekly Quiz Competition
  • Question 1
    1 / -0

    Direction (Q. Nos. 1-10) This section contains 10 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONLY ONE is correct.

    Q. 

    Which of the following statement is correct about the hydride of group 16 elements?

    Solution

    Order of acidic strength, thermal stability and melting points and boiling points are given in correct order.

  • Question 2
    1 / -0

    The pair that contains mixed oxides is

    Solution

    Mixed oxides are made up of two simple oxides like
    Pb3O4 (2PbO + PbO2), Fe3O4 (FeO + Fe2O3) , Mn3O4 (2MnO + MnO2

  • Question 3
    1 / -0

    The acid having a sulp hur atom with a lone pair of electrons on it, is

    Solution

    Sulphur having valency 6 do not possess lone pair while the sulphur with valency 4 possess one lone pair.

  • Question 4
    1 / -0

    Charring of cane sugar by sulphuric acid shows ...... property of the acid.

    Solution

    Cone. H2SO4 is a strong dehydrating agent. Many wet gases can be dried by passing them through sulphuric acid. H2SO4 removes water from organic compounds. It is evident by its charring action on carbohydrates.

  • Question 5
    1 / -0

    Which of the following statements is incorrect?

    Solution

    Disulphur dichlor

    The angle between  the   planes is 90°.
    The structure is referred to as gauche.

  • Question 6
    1 / -0

    xSo2 + yMnO-4 + zH2O → Mn2+ + SO42- + H+ . In this, three values of x, y, z are

    Solution

  • Question 7
    1 / -0

    Which of the following is wrong statement?

    Solution

    The chemical reaction of H2SO4 as a result of its low volatility, strong acidic character, stiong affinity for water and ability to act as an oxidising agent.

  • Question 8
    1 / -0

    Among the following oxyacids of sulphur, which one has more than one oxidation state for sulphur?

    Solution

    In thiosulphuric acid, S has both - 2 and + 6 oxidation states.

  • Question 9
    1 / -0

    In SO3 molecule, 3 oxygen atoms are attached to sulphur atom through double bonds. Hence, the molecules consist 3π-bonds. The types of pi-bonds present in SO3 molecule are

    Solution

    In gas phase, SO3 molecule is triangular planar having sp2-hybridisation of the S-atom. There are three sigma bonds formed by sp2-p overlap and three pi-bonds are by pπ-pπ overlap and two pπ-dπ overlap.

  • Question 10
    1 / -0

    Which of the following is known as C aro’s acid?

    Solution

    H2SO5 is known as Caro's acid or peroxysuiphuric acid.

  • Question 11
    1 / -0

    Direction (Q. No. 11) This section is based on Statements I and Statements II. Select the correct answer from the codes given below.

    Q. 

    Statement I : In Caro’s acid (H2SO5), the oxidation state of sulphur is found to be +8.

    Statement II : In Caro’s acid, sulphur atom is attached to four oxygen atoms directly.

    Solution

    The oxidation state of sulphur in caro's acid is +6. The structure of the acid is

    The two of the attached O-atoms impart +2 oxidation state each to the sulphur atom and rest two O-atoms (single bonded) imparts +1 oxidation state each to the S-atom. Hence, S-atom has a total of +6 oxidation state

  • Question 12
    1 / -0

    Direction (Q. Nos. 12-14) Choices for the correct combination of elements from Column I and Column II are given as options (a), (b), (c) and (d), out of which one is correct.

    Q. 

    Match the Column I with Column II and mark the correct option from the codes given below.

    Solution

    The oxidation states of sulphur in H2SO3, H2SO4, and H2SO5 are respectively +4, +6 and +6.

  • Question 13
    1 / -0

    Match the Column I with Column II and mark the correct option from the codes given below.

    Solution

  • Question 14
    1 / -0

    Match the Column I with Column II and mark the correct option from the codes given below.

    Solution

Self Studies
User
Question Analysis
  • Correct -

  • Wrong -

  • Skipped -

My Perfomance
  • Score

    -

    out of -
  • Rank

    -

    out of -
Re-Attempt Weekly Quiz Competition
Self Studies Get latest Exam Updates
& Study Material Alerts!
No, Thanks
Self Studies
Click on Allow to receive notifications
Allow Notification
Self Studies
Self Studies Self Studies
To enable notifications follow this 2 steps:
  • First Click on Secure Icon Self Studies
  • Second click on the toggle icon
Allow Notification
Get latest Exam Updates & FREE Study Material Alerts!
Self Studies ×
Open Now