English

Select the Correct Answer to the Statement Given Below: a Metalloid - Chemistry

Advertisements
Advertisements

Question

Select the correct answer to the statement given below:

A metalloid

Options

  • Chalk

  • Oxygen

  • Silicon

  • Bromine

  • Nitrous oxide

MCQ

Solution

Silicon

shaalaa.com
  Is there an error in this question or solution?
Chapter 3: Elements, Compounds and Mixtures - Objective Type Questions

APPEARS IN

Viraf J. Dalal New Simplified Middle School Chemistry [English] Class 7
Chapter 3 Elements, Compounds and Mixtures
Objective Type Questions | Q 1.4

RELATED QUESTIONS

Give two examples for the following: Metals


Fill in the blank

Use of a ................. to separate the components of a mixture of solids is based on the difference in the size of the components


Write true or false 

All pure substances have characteristic melting and boiling points.


 Differentiate between the following.

Filter Paper and Alum


Give Two Examples for Each of the Following: Non-metals


Write the Chemical Name of the Following and Also Give Their Molecular Formulae:

Vinegar


Give two examples of Metals.


Find the atomicity of the Following molecule:
Aluminium Suiphide


Find the atomicity of the Following molecule:
Carbon Monoxide


Indicate whether the following statement is true or false:
Elements are made up of compounds


Tick (√) the correct alternative from the choice given for the following statement.
All pure substances have


Match the statements in List I – 1 to 10 correct answers in List II-A to J.

  List I   LIst II
1 Fluorine and chlorine A Nitrogen
2 A diatomic molecule B Boron
3 A molecule containing the elements hydrogen and oxygen. C Reactants
4 A metalloid - showing properties of both metals and non-metals. D Chemical Formula
5 The term used for the substances which take part in the chemical reaction E Halogens
6 The term represents a  substance by means of symbols. F Water
7 The term used for the substances formed as a result of a chemical reaction G Nitric Acid
8 A compound containing one atom of zinc and two atoms of chlorine. H Products
9 The chemical name for nitrogen monoxide. I Phosphorus
10 A polyatomic molecule. J Zinc Chloride

 


Select the correct answer from the choice given below.
The negatively charged particles in an atom


Select the correct answer from the choice given below.
An element which is a poor conductor of heat


Give a reason for the following statement :

The filter paper made into a cone & placed in a funnel for filtering out the solid particles in a solid-liquid mixture should be moistened before placing it.


Elements : Combine to form compounds :: Compounds : ______.


Classify the following as elements and compounds.

Water, Common salt, Sugar, Carbon dioxide, Iodine and Lithium


Assertion: Air is a mixture of elements only.

Reason: Only nitrogen, oxygen and neon gases exist in air.


How are elements classified?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×