Download App

Matter in Our Surroundings — Science STD 9 — Question

CBSE BoardEnglish MediumSTD 9ScienceMatter in Our Surroundings1 Mark
MCQ
An earthenware keeps water cool but a metallic vessel does not because:
  • A
    Earthenware has pores.
  • B
    Metals are good thermal conductors
  • C
    Metal wares are heat resistant.
  • D
    Earthen wares are impervious.
✓

Answer

  1. Earthenware has pores.

Explanation:

An earthenware keeps water cool but a metallic vessel does not because earthenware has pores.

Because of these pores, some of the water can easily evaporate through them, because of this evaporation the water inside is kept cool.

This is not possible in a metallic vessel.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q-[Che-1M]" from Matter in Our Surroundings→Matter in Our Surroundings — all question types→Science STD 9 question papers→CBSE Board STD 9 question papers→CBSE Board question paper generator→

Similar questions

The dyes present in fountain pen ink can be separated by the technique of:
  1. Fractional distillation.
  2. Infrared photography.
  3. Crystallization.
  4. Chromatography.
→
Molecular mass is defined as the:
→
The temperature remains constant during melting and all the ice changes into water. The enthalpy change associated with this process is due to _____________?
→
Rutherford’s α–particle scattering experiment showed that:

  1. Electrons have negative charge.
  2. The mass and positive charge of the atom is concentrated in the nucleus.
  3. Neutron exists in the nucleus.
  4. Most of the space in atom is empty.

Which of the above statements are correct?

→
Arrange the following according to correct Dalton's symbols. Hydrogen Carbon Oxygen Sulphur:
→
Beta particles are essentially:
→
Which of the following obeys the law of constant proportions in their formation:
→
A positively charged ion is called :
→
The SI unit of volume is cubic metre (m3). The common unit of measuring volume in litre (L). Then, 1L = …… dm3, 1L = ………. mL and 1 mL = …….. cm3.
→
Which of the following is not true about sulphur?
→