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Uttarakhand Board Class 10 Periodic Classification of Elements — practice questions

Explore 44 free Periodic Classification of Elements questions in Uttarakhand Board Class 10 Chemistry. Open each question or exercise to read its content, reference answers and available explanation.

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Periodic Classification of Elements questions and exercises with answers

Showing questions 1–30 of 44.

CLASS10 · Chemistry · Periodic Classification — Group NamesRead the answer and worked solution →Sort: down a group, what happens? (CBSE Cl 10)Read the answer and worked solution →Match the group to its property (CBSE Cl 10)Read the answer and worked solution →Who put forward the law of triads?Read the answer and worked solution →Newlands' law of octaves stated that every:Read the answer and worked solution →Mendeleev arranged elements primarily in order of:Read the answer and worked solution →The modern periodic table is based on:Read the answer and worked solution →How many periods does the modern periodic table have?Read the answer and worked solution →What is the valency of an element with electronic configuration 2, 8, 3?Read the answer and worked solution →Atomic radius generally DECREASES across a period because:Read the answer and worked solution →Which is the most reactive metal?Read the answer and worked solution →Which property INCREASES on going down a group?Read the answer and worked solution →Which element has the highest electronegativity in the periodic table?Read the answer and worked solution →How does metallic character change down a group?Read the answer and worked solution →Sodium (atomic number 11) belongs to which group and period?Read the answer and worked solution →Which of the following has the largest atomic radius?Read the answer and worked solution →Which trend is followed by ionisation energy across a period?Read the answer and worked solution →Which set lists representative elements (s-block and p-block) only?Read the answer and worked solution →Which pair shows the diagonal relationship in the periodic table?Read the answer and worked solution →Across period 3, which element forms the most acidic oxide?Read the answer and worked solution →Why is potassium more reactive than sodium?Read the answer and worked solution →How does the size of a cation compare with its parent atom?Read the answer and worked solution →Which is the most non-metallic element of group 16?Read the answer and worked solution →Why are the noble gases very stable chemically?Read the answer and worked solution →Mendeleev predicted the existence of an element he called eka-silicon, later identified as:Read the answer and worked solution →Upto which element, the Law of Octaves was found to be applicableRead the answer and worked solution →According to Mendeleev's Periodic Law, the elements were arranged in the periodic table in the order ofRead the answer and worked solution →Where would you locate the element with electronic configuration 2,8 in the Modern Periodic Table?Read the answer and worked solution →An element which is an essential constituent of all organic compounds belongs toRead the answer and worked solution →Which of the following is the outermost shell for elements of period 2?Read the answer and worked solution →

Worked practice questions

CLASS10 · Chemistry · Periodic Classification — Group Names

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Matching pairs
  1. Left
    Group 1
    Right
    Alkali metals
  2. Left
    Group 2
    Right
    Alkaline earth metals
  3. Left
    Group 17
    Right
    Halogens
  4. Left
    Group 18
    Right
    Noble gases
  5. Left
    Mendeleev
    Right
    Father of modern periodic table
  6. Left
    Period
    Right
    A horizontal row in the periodic table
Instructions
Match each periodic-table term to its description.

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Sort: down a group, what happens? (CBSE Cl 10)

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Items
  1. Item
    Atomic size
    Answer
    left
  2. Item
    Metallic character
    Answer
    left
  3. Item
    Number of shells
    Answer
    left
  4. Item
    Ionisation energy
    Answer
    right
  5. Item
    Electronegativity
    Answer
    right
  6. Item
    Non-metallic character
    Answer
    right
Categories
Left
Increases
Right
Decreases

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Match the group to its property (CBSE Cl 10)

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Matching pairs
  1. A
    Group 1
    B
    Alkali metals, 1 valence electron
  2. A
    Group 2
    B
    Alkaline earth metals, 2 valence electrons
  3. A
    Group 17
    B
    Halogens, 7 valence electrons
  4. A
    Group 18
    B
    Noble gases, complete outer shell

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More Chemistry topics

Carbon and its CompoundsMetals and Non-metalsAlcohols Phenols EthersAldehydes KetonesAlkenesChemical EquilibriumClassification of Elements and PeriodicityClassification of Elements and Periodicity in Properties