English

One of the Following Does Not Undergo Sublimation. this One is : - Science

Advertisements
Advertisements

Question

One of the following does not undergo sublimation. This one is :

Options

  • camphor

  • dry ice

  • silica

  • iodine

MCQ

Solution

silica

Silica does not sublime on heating.

shaalaa.com
  Is there an error in this question or solution?
Chapter 2: Is Matter Around Us Pure - Very Short Answers [Page 107]

APPEARS IN

Lakhmir Singh Chemistry [English] Class 9
Chapter 2 Is Matter Around Us Pure
Very Short Answers | Q 84 | Page 107

RELATED QUESTIONS

 Match the following

Column A Column B
(a) Molecules (i) Water boils
(b) 100° C (ii) Evaporation
(c) 0° C (iii) Changes from solid to gas
(d) At all temperatures (iv) Matter
(e) Camphor (v) Water freezes

The inter-molecular force is maximum in


Fill in the blank :

The state of matter with definite volume and definite shape is called______


Which of the following materials fall in the category of a “pure substance”?

  1. Ice
  2. Milk
  3. Iron
  4. Hydrochloric Acid
  5. Calcium oxide
  6. Mercury
  7. Brick
  8. Wood
  9. Air

During respiration, glucose and oxygen enter our body cells and waste products carbon dioxide and water leave the body cells by the process of :


Which of the following substances are elements ?

Water, Salt, Mercury, Iron, Marble, Diamond, Wood, Nitrogen, Air, Graphite, Hydrogen, Oxygen, Sugar, Chlorine


The property/properties which enable copper metal to be used for making electric wires is/are :


Fill in the following blank :

Milk is a .................... solution but vinegar is a .................... solution.


Define solubility of a substance. How does it vary with temperature ?


What is a colloid ? Give two examples of colloids (or colloidal solutions)


One of the following does not show Tyndall effect. This one is :


Which of the following can be called a suspension ?


How is the impurity of iron present in several substances removed in industries ?


Which one of the following scrap metal cannot be separated by magnetic separation ?


Tincture of iodine is a mixture of two materials X and Y. The material Y has a property that its solid form can be converted directly into vapours on heating by a process called Z.

  1. What could X be ?
  2. What could Y be ?
  3. Name the process Z.
  4. Which process would you use to recover both the components X and Y from tincture of iodine ?
  5. Which process can be used to recover only component Y from tincture of iodine ?

The non S I and S I units of some physical  quantities are given in column A and column B respectively. Match the units belonging to the same physical quantity: 

(A) (B)
(a) degree celsius (i) kilogram
(b) centimetre (ii) pascal
(c) gram per centimetre cube (iii) metre
(d)  bar (iv) kelvin
(e) milligram (v)  kilogram per metre cube

Rusting of an article made up of iron is called


Which of the following are homogeneous in nature?

(i) ice

(ii) wood

(iii) soil

(iv) air


Complete the following table:

S.No. CELSIUS KELVIN
1. 90°C 363 K
2. ______ 283 K
3. 63 °C ______
4. 250°C ______
5. ______ 303 K

Boiling refers to the process by which a substance changes from the liquid to the gaseous state at its ______ point.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×