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11th Standard Chemistry English Medium Free Online Test Book Back One Mark Questions - Part Three

11th Standard

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Chemistry

Time : 00:10:00 Hrs
Total Marks : 10

    Answer all the questions

    10 x 1 = 10
  1. The number of water molecules in a drop of water weighing 0.018 g is

    (a)

    6.022 x 1026

    (b)

    6.022 x1023

    (c)

    6.022 x 1020

    (d)

    9.9 x 1022

  2. Which of the following pairs of d-orbitals will have electron density along the axes ?

    (a)

    dz2, dxz

    (b)

    dxz, dyZ

    (c)

     dz2, dx2-y2

    (d)

    dxy ,dx2-y2

  3. Which of the following elements will have the highest electro negativity

    (a)

    Chlorine

    (b)

    Nitrogen

    (c)

    Cesium

    (d)

    Fluorine

  4. Non-stoichiometric hydrides are formed by

    (a)

    palladium, vanadium

    (b)

    carbon, nickel

    (c)

    manganese, lithium

    (d)

    nitrogen, chlorine

  5. sodium is stored in

    (a)

    alcohol

    (b)

    water

    (c)

    kerosene

    (d)

    none of these

  6. The IUPAC name of the Compound is

    (a)

    2,3 - Diemethylheptane

    (b)

    3- Methyl -4- ethyloctane

    (c)

    5-ethyl -6-methyloctane

    (d)

    4-Ethyl -3 - methyloctane

  7. Homolytic fission of covalent bond leads to the formation of

    (a)

    electrophile

    (b)

    nucleophile

    (c)

    Carbo cation

    (d)

    free radical

  8. The C – H bond and C – C bond in ethane are formed by which of the following types of overlap

    (a)

    sp3 – s and sp3 – sp3

    (b)

    sp2 – s and sp2 – Sp2

    (c)

    sp – sp and sp – sp

    (d)

    p – s and p – p

  9. With respect to the position of – Cl in the compound CH3 – CH = CH – CH2 – Cl, it is classified as

    (a)

    Vinyl

    (b)

    Allyl

    (c)

    Secondary

    (d)

    Aralkyl

  10. Haemoglobin of the blood forms carboxy haemoglobin with

    (a)

    Carbon dioxide

    (b)

    Carbon tetra chloride

    (c)

    Carbon monoxide

    (d)

    Carbonic acid

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