ICSE 10 Chemistry
Metallurgy
Question 1:
(a) Name the three classes in which elements are classified. Which was the first metal used by man?
(b) Name the metal and non-metal present in abundance in the earth crust. [Level: Easy]
Question 2:
Name the metal which is a constituent of: (a) blood pigment (b) plant pigment [Level: Easy]
Question 3:
State the position of the following in the periodic table: (a) Alkali metals (b) Alkaline earth metals (c) Halogens (d) Aluminum [Level: Difficult]
Question 4:
Why do gold ornaments look new even after several years of use? [Level: Difficult]
Question 5:
Explain the following terms: (a) ore (b) Gangue (c) Metallurgy [Level: Moderate]
Question 6:
Which metal can be extracted from each one of the following ores: (a) bauxite (b) calamine (c) haematite [Level: Moderate]
Question 7:
Give the principles of: (a) Hydrolytic method (b) Froth floatation process (c) Electromagnetic separation [Level: Easy]
Question 8:
(a) Name the methods by which concentrated ore is converted to metallic oxide (b) State three objectives achieved during the roasting of ores. [Level: Easy]
Question 9:
(a) the process involved in (i) dressing of the ores (ii) refining of the ores
(b) two metallic oxides which cannot be reduced by carbon, carbon monoxide or hydrogen [Level: Moderate]
Question 10:
Why does iron or zinc does not occur freely in nature? [Level: Difficult]
Question 11:
What do you observe when hydrogen is passed over heated copper oxide? [Level: Moderate]
Question 12:
(a)Name an ore of zinc (b) Which process is applied to concentrate it? (c) How is concentrated ore changed to oxide?
Question 13:
An ore on being heated in air forms sulphorous anhydride. Write the process used for the concentration of this ore. [Level: Moderate]
Question 14:
Define roasting. [Level: Easy]
Question 15:
The metal other than aluminum, which has a strong affinity for oxygen is:
(a) Copper
(c) Silver
(d) Gold [Level: Difficult]
Question 16:
A metallic oxide which cannot be reduced by normal reducing agents:
(b) Magnesium oxide
(c) Copper (II) oxide
(d) Iron (III) oxide [Level: Difficult]
Question 17:
Fill in the blanks:
(a) Usually __________ (sulphide/carbonate) ores are subjected to _________ (calcination/roasting) which is done in the absence of air
(b) Zinc blende is converted to oxide by ___________ (roasting/calcination) process.
(c) Froth floatation process is generally used to concentrate __________ ores (sulphides/carbonate) [Level: Moderate]
Question 18:
State the position of aluminum in the periodic table. [Level: Easy]
Question 19:
(a) Which impurities are present in bauxite?
(b) What is red mud, how is it removed? [Level: Difficult]
Question 20:
What is an alloy? How do the properties of an alloy differ from its constituents? [Level: Moderate]
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All About Daily Practice Problems on ICSE 10 Chemistry Metallurgy NCERT Chapter 7
Our Daily Practice Problems (DPPs) offer a diverse range of question types, including Multiple Choice Questions (MCQs) as well as short and long answer types. These questions are categorized into Easy, Moderate, and Difficult levels, allowing students to gradually progress and challenge themselves accordingly. Additionally, comprehensive solutions are provided for each question, available for download in PDF format - Download pdf solutions as well as Download pdf Questions. This approach fosters a holistic learning experience, catering to different learning styles, promoting self-assessment, and improving problem-solving skills. With our well-structured DPPs, students can excel in exams while gaining a deeper understanding of the subject matter. Hope you found the content on ICSE 10 Chemistry Metallurgy NCERT Chapter 7 useful.
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