9th Standard English Medium Science Subject Book Back 1 Mark Questions with Solution Part - II

9th Standard

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Science

Time : 00:30:00 Hrs
Total Marks : 15
    15 x 1 = 15
  1. The part of the AC generator that passes the current from the armature coil to the external circuit is

    (a)

    field magnet

    (b)

    split rings

    (c)

    slip rings

    (d)

    brushes

  2. Elements in the modern periodic table are arranged in__________ groups and __________ periods.

    (a)

    7,18

    (b)

    18,7

    (c)

    17,8

    (d)

    8, 17

  3. Covalent bond is formed by_________

    (a)

    transfer of electrons

    (b)

    sharing of electrons

    (c)

    sharing a pair of electrons

    (d)

    transfer of electrons

  4. The nature of the tooth paste commonly used is in nature

    (a)

    acidic

    (b)

    basic

    (c)

    neutral

    (d)

    neutral

  5. Nerve cell does not contains

    (a)

    axon

    (b)

    nerve endings

    (c)

    tendons

    (d)

    dendrites

  6. Which one of the following substance is not a constituent of sweat?

    (a)

    Urea

    (b)

    Protein

    (c)

    Water

    (d)

    Salt

  7. In a pressure cooker, the food is cooked faster because

    (a)

    increased pressure lowers the boiling point

    (b)

    increased pressure raises the boiling point

    (c)

    decreased pressure raises the boiling point

    (d)

    increased pressure lowers the melting point

  8. When the pitch of note by a harmonium is lowered, then the wave length of the note

    (a)

    first decreases and then increases

    (b)

    decreases

    (c)

    remains the same

    (d)

    increases

  9. Ceres is a _______.

    (a)

    Meteor

    (b)

    Star

    (c)

    Planet

    (d)

    Astroid

  10. Graphene is one atom thick layer of carbon obtained from

    (a)

    Diamond

    (b)

    Fullerene

    (c)

    Graphite

    (d)

    Gas Carbon

  11. Radiochemistry deals with

    (a)

    oxidants

    (b)

    batteries

    (c)

    isotopes

    (d)

    nanoparticles

  12. Identify the incorrect statement with respect to adaptations of earthworm.

    (a)

    Earthworm has a stream lined body with no antennae or fins.

    (b)

    Each segment of earthworm has setae.

    (c)

    Many earthworms become inactive in a process called hibernation, during winter season.

    (d)

    Earthworms remain in its burrow during day time, to avoid sunlight.

  13. __________ is the method of growing plants without soil.

    (a)

    Horticulture

    (b)

    Hydroponics

    (c)

    Pomology

    (d)

    None of these.

  14. The organ affected by jaundice is

    (a)

    liver

    (b)

    lungs

    (c)

    kidney

    (d)

    brain

  15. Find out the Paid and Proprietary software from the given list

    (a)

    Windows

    (b)

    MAC OS

    (c)

    Adobe Photoshop

    (d)

    All the above

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