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DSSSB TGT Atoms and Molecules — practice questions — page 2

Explore 59 free Atoms and Molecules questions in DSSSB TGT Chemistry. Open each question or exercise to read its content, reference answers and available explanation.

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Atoms and Molecules questions and exercises with answers

Showing questions 31–59 of 59.

Three elements B, Si and Ge areRead the answer and worked solution →Which of the following elements will form an acidic oxide?Read the answer and worked solution →On moving from left to right in a period in the periodic table, the size of the atom.Read the answer and worked solution →Order the atomic models as they were proposedRead the answer and worked solution →Match each scientist to their modelRead the answer and worked solution →Match each model to what it could NOT explainRead the answer and worked solution →True or false: Rutherford's modelRead the answer and worked solution →True or false: Bohr's modelRead the answer and worked solution →Complete the reason Bohr's model failsRead the answer and worked solution →Which model does this belong to?Read the answer and worked solution →Match each quantum number to what it is calledRead the answer and worked solution →True or false: the quantum mechanical modelRead the answer and worked solution →Order the structure: from atom down to electronRead the answer and worked solution →Complete the (n + l) ruleRead the answer and worked solution →True or false: orbital energiesRead the answer and worked solution →Match each rule to what it forbids or requiresRead the answer and worked solution →Tap every statement Hund's rule requiresRead the answer and worked solution →The fundamental particlesRead the answer and worked solution →Assertion and reasonRead the answer and worked solution →Two are true, one is notRead the answer and worked solution →Three of these are wrong. Find the one that holds.Read the answer and worked solution →Which principle is being described?Read the answer and worked solution →Flip and pair: symbol with meaningRead the answer and worked solution →Spot the one that does not belongRead the answer and worked solution →Tap every statement true of the Schrodinger modelRead the answer and worked solution →Reading the models backRead the answer and worked solution →Assertion and reason: filling orbitalsRead the answer and worked solution →True or false: shells and subshellsRead the answer and worked solution →Complete the two filling rulesRead the answer and worked solution →

Worked practice questions

Three elements B, Si and Ge are

  1. metals
  2. non-metals
  3. metal, non-metal and metalloid respectively
  4. metalloids
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Correct answer: D. metalloids

This Periodic Classification of Elements item tests a core Chemistry concept. Correct answer: metalloids. _Source: syllabus Exemplar Science Class 10_

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Which of the following elements will form an acidic oxide?

  1. An element with atomic number 7
  2. An element with atomic number 3
  3. An element with atomic number 12
  4. An element with atomic number 19
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Correct answer: A. An element with atomic number 7

This Periodic Classification of Elements item tests a core Chemistry concept. Correct answer: An element with atomic number 7. _Source: syllabus Exemplar Science Class 10_

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On moving from left to right in a period in the periodic table, the size of the atom.

  1. increases
  2. does not change appreciably
  3. decreases
  4. first decreases and then increases
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Correct answer: C. decreases

This Periodic Classification of Elements item tests a core Chemistry concept. Correct answer: decreases. _Source: syllabus Exemplar Science Class 10_

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More Chemistry topics

Alcohols Phenols EthersAlkenesChemical EquilibriumClassification of Elements and PeriodicityOrganic Chemistryp-Block Elementsp-Block Elements (Groups 15-18)Polymers