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NEET UG S Block Elements — practice questions

Explore 30 free S Block Elements questions in NEET UG Chemistry. Open each question or exercise to read its content, reference answers and available explanation.

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S Block Elements questions and exercises with answers

Showing questions 1–30 of 30.

In s-block elements, the last electron enters the outermost:Read the answer and worked solution →Because the s-orbital holds only two electrons, the s-block has groups numbering:Read the answer and worked solution →Which element belongs to Group 1?Read the answer and worked solution →The elements of Group 1 are collectively known as the:Read the answer and worked solution →Alkali metals are so called because their hydroxides are strongly:Read the answer and worked solution →Which element belongs to Group 2?Read the answer and worked solution →Group 2 elements except one are known as the alkaline earth metals; the exception is:Read the answer and worked solution →Alkaline earth metals are so called because their oxides are alkaline and found in the:Read the answer and worked solution →Among the alkali metals, the two abundant ones are potassium and:Read the answer and worked solution →Francium is described as highly:Read the answer and worked solution →The longest lived isotope of francium has a half-life of only:Read the answer and worked solution →Calcium and magnesium rank fifth and sixth in abundance in the:Read the answer and worked solution →The first element of each s-block group differs from the rest and resembles the:Read the answer and worked solution →Lithium shows similarities to which element?Read the answer and worked solution →The resemblance of lithium to magnesium is called the relationship that is:Read the answer and worked solution →The diagonal relationship is due to similarity in ionic size and the ratio of:Read the answer and worked solution →All the alkali metals are described as silvery white, light and:Read the answer and worked solution →Alkali metals have low density because of their:Read the answer and worked solution →Alkali metals colour a flame because heat excites the electron that is:Read the answer and worked solution →Alkali metals can be determined by flame photometry or by spectroscopy that is:Read the answer and worked solution →Alkali metals are useful as electrodes in cells that are:Read the answer and worked solution →Among the alkali metals, the most powerful reducing agent is:Read the answer and worked solution →True or false on the s-blockRead the answer and worked solution →Quick picks on the s-blockRead the answer and worked solution →Match each fact to its elementRead the answer and worked solution →Group 1 or Group 2Read the answer and worked solution →Abundant or scarce alkali metalRead the answer and worked solution →Why a flame test shows colourRead the answer and worked solution →Fill the gaps on the s-blockRead the answer and worked solution →Spot the one that does not fitRead the answer and worked solution →

Worked practice questions

In s-block elements, the last electron enters the outermost:

  1. s-orbital
  2. p-orbital
  3. d-orbital
  4. f-orbital
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Correct answer: A. s-orbital

1. Blocks are named for the orbital being filled. 2. For these elements that orbital is spherical. 3. The last electron enters the outermost s-orbital. _Source: syllabus Chemistry Part II, Unit 10, The s-Block Elements._

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Because the s-orbital holds only two electrons, the s-block has groups numbering:

  1. Ten
  2. Two
  3. Four
  4. Six
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Correct answer: B. Two

1. Each group adds one electron to the outer s-orbital. 2. That orbital is full after two. 3. So groups 1 and 2 make up the s-block. _Source: syllabus Chemistry Part II, Unit 10, The s-Block Elements._

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Which element belongs to Group 1?

  1. Rubidium
  2. Strontium
  3. Barium
  4. Radium
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Correct answer: A. Rubidium

1. Group 1 runs lithium, sodium, potassium, rubidium, caesium, francium. 2. Strontium, barium and radium sit in Group 2. 3. So rubidium is the Group 1 member. _Source: syllabus Chemistry Part II, Unit 10, The s-Block Elements._

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