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Anonymous
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Anonymous
Asked: January 24, 2021Category: Chemistry

The metallurgical process in which a metal is obtained in a fused state is called

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  1. Expert Verified
    CrazyMan Guru
    Added an answer on January 24, 2021 at 6:26 am

    The metallurgical process in which a metal is obtained in a fused state is called smelting

    The metallurgical process in which a metal is obtained in a fused state is called smelting

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Eve
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EveBeginner
Asked: December 21, 2020Category: Chemistry

Which of the following metals is found in free state?

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  1. Expert Verified
    CrazyMan Guru
    Added an answer on December 21, 2020 at 9:25 am

    Gold is found in the free state because of its less reactive characteristics. The metals that are less reactive in nature are found in the free state. Other metals that are found in the free state include Silver and Platinum.

    Gold is found in the free state because of its less reactive characteristics. The metals that are less reactive in nature are found in the free state. Other metals that are found in the free state include Silver and Platinum.

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Anonymous
Anonymous
Asked: December 23, 2020Category: Chemistry

Given in the options are sets of particular characteristics of elements and how they vary across the period and down the group in the following format –

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  1. Expert Verified
    CrazyMan Guru
    Added an answer on December 23, 2020 at 7:34 pm

    C) Electropositive Character/metallic character - Decrease - Increase

    C) Electropositive Character/metallic character – Decrease – Increase

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Anonymous
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Anonymous
Asked: September 20, 2021Category: Chemistry

Which formula represents a nonpolar molecule?

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  1. Mighty Ashish Guru
    Added an answer on September 20, 2021 at 11:57 am

    Explanation: You have to consider three things. 1. First, are the bonds polar? Look at differences in electronegativity and if it is >0.5, bonds are polar. 2. Second, does the molecule have unshared electron pairs? If so, they generally lead to a polar molecule. 3. Third, is the molecule symmetriRead more

    Explanation:

    You have to consider three things.

    1. First, are the bonds polar?

    Look at differences in electronegativity and if it is >0.5, bonds are polar.

    2. Second, does the molecule have unshared electron pairs?

    If so, they generally lead to a polar molecule.

    3. Third, is the molecule symmetric?

    If so, then although the bonds may be polar, the symmetry cancels out the individual bond polarity and the molecule is non polar.

    CF4 follows all the rules above and has a symmetric distribution of charge, making it nonpolar. The others all have asymmetric charge distributions.

    Hence, CF4 represents a Non-polar molecule.

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Anonymous
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Anonymous
Asked: September 23, 2021Category: Chemistry

Which one of the following is not true for minerals?

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  1. Mighty Ashish Guru
    Added an answer on September 23, 2021 at 11:10 am

    Explanation: A mineral is a naturally occurring, inorganic solid, with a definite chemical composition. They cannot be in liquid or gas state. They exists only in solid state.

    Explanation:

    A mineral is a naturally occurring, inorganic solid, with a definite chemical composition. They cannot be in liquid or gas state. They exists only in solid state.

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aalan
Anonymous
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Anonymous
Asked: September 28, 2021Category: Chemistry

Atomic number of which of the following elements is greater than that of Phosphorus?

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  1. Mighty Ashish Guru
    Added an answer on September 28, 2021 at 9:09 pm

    Explanation: The atomic number of : Phosphorus = 15 Aluminium = 13 Chlorine = 17 Magnesium = 12. Hence atomic number of Chlorine is more than that of Phosphorus.

    Explanation:

    The atomic number of :

    Phosphorus = 15

    Aluminium = 13

    Chlorine = 17

    Magnesium = 12.

    Hence atomic number of Chlorine is more than that of Phosphorus.

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Anonymous
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Anonymous
Asked: October 6, 2021Category: Chemistry

Browning of paper in old books is caused by

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  1. Mighty Ashish Guru
    Added an answer on October 6, 2021 at 8:32 pm

    Explanation: Browning of paper in old books are caused by Oxidation of Celluose. Paper is mainly made up of white cellulose but it also contains lignin present in the wood which when exposed to the air and sunlight turns the paper Yellowish/Brownish. Lignin is a polymer which makes the wood of the tRead more

    Explanation:

    Browning of paper in old books are caused by Oxidation of Celluose.

    Paper is mainly made up of white cellulose but it also contains lignin present in the wood which when exposed to the air and sunlight turns the paper Yellowish/Brownish.

    Lignin is a polymer which makes the wood of the trees stiff to make trees stand upright as well as it also protects it from pests and other damage.

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Anonymous
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Anonymous
Asked: July 17, 2021Category: Chemistry

______ are homogeneous mixtures of two or more components.

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  1. Expert Verified
    Mighty Ashish Guru
    Added an answer on July 17, 2021 at 4:06 pm

    Solutions are a homogeneous mixture of two or more components

    Solutions are a homogeneous mixture of two or more components

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Anonymous
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Anonymous
Asked: July 29, 2021Category: Chemistry

Which compound is an electrolyte?

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  1. Mighty Ashish Guru
    Added an answer on July 29, 2021 at 7:47 pm

    Explanation: A substance that dissociates into ions in solution and acquires the capacity to conduct electricity. Sodium, potassium, chloride, calcium, and phosphate are examples of electrolytes, informally known as lytes.

    Explanation:

    A substance that dissociates into ions in solution and acquires the capacity to conduct electricity. Sodium, potassium, chloride, calcium, and phosphate are examples of electrolytes, informally known as lytes.

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Anonymous
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Anonymous
Asked: August 12, 2021Category: Chemistry

The luster of a metal is due to presence of free electrons.

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  1. Mighty Ashish Guru
    Added an answer on August 12, 2021 at 7:39 pm

    Explanation: True, The luster of a metal is due to presence of free electrons. Luster means shine or soft glow. We know that metals have the quality of reflecting light from its surface.

    Explanation:

    True, The luster of a metal is due to presence of free electrons. Luster means shine or soft glow. We know that metals have the quality of reflecting light from its surface.

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