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Three elements X ,Y and Z having atomic number 11,7 and 16 respectively react with oxygen to form their oxides a)arrange these arrange their oxides in increasing order of the basic nature B) give reason for your answer?
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Three elements X ,Y and Z having atomic number 11,7 and 16 respectivel...
According to periodic table metallic character decreases left to right in a period,so the order of basicity is is Na>C>N.
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Three elements X ,Y and Z having atomic number 11,7 and 16 respectivel...
Arranging the oxides in increasing order of basic nature:


The basic nature of an oxide depends on the ability of the oxide to accept protons (H+ ions) from water, forming hydroxide ions (OH-). The greater the ability to accept protons, the stronger the basic nature of the oxide.


Let's analyze the oxides of elements X, Y, and Z:


Oxide of element X:

The atomic number of X is 11, which corresponds to the element sodium (Na). Sodium oxide (Na2O) is formed when sodium reacts with oxygen. The chemical equation for the reaction is:

4Na + O2 → 2Na2O

Sodium oxide is a basic oxide because it reacts with water to form sodium hydroxide (NaOH), a strong base. The reaction is:

Na2O + H2O → 2NaOH


Oxide of element Y:

The atomic number of Y is 7, which corresponds to the element nitrogen (N). Nitrogen oxide (NO) is formed when nitrogen reacts with oxygen. The chemical equation for the reaction is:

N2 + O2 → 2NO

Nitrogen oxide is a neutral oxide because it does not react with water. It neither has basic nor acidic properties.


Oxide of element Z:

The atomic number of Z is 16, which corresponds to the element sulfur (S). Sulfur oxide (SO2) is formed when sulfur reacts with oxygen. The chemical equation for the reaction is:

S + O2 → SO2

Sulfur oxide is an acidic oxide because it reacts with water to form sulfurous acid (H2SO3). The reaction is:

SO2 + H2O → H2SO3


Arranging the oxides in increasing order of basic nature:


  1. Nitrogen oxide (NO)

  2. Sulfur oxide (SO2)

  3. Sodium oxide (Na2O)



Explanation:

Based on the reactivity with water, the oxides can be arranged in increasing order of basic nature. Nitrogen oxide (NO) does not react with water, so it is neutral. Sulfur oxide (SO2) reacts with water to form a weak acid, making it less basic than sodium oxide (Na2O), which reacts with water to form a strong base (sodium hydroxide).
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Read the passage and answer the questions :Mendeleev was a Russian chemist, who contributed the most for the development of periodic table of elements wherein the elements were arranged on the basis of their fundamental property, the atomic mass and also on the similarity of chemical properties. Only 63 elements were known at his time. He arranged the 63 elements in the increasing order of their atomic masses and found that there was a periodic recurrence of elements with similar physical and chemical properties. He observed that elements with similar properties fall in the same vertical column. These vertical columns are called groups and horizontal rows of elements are called periods. Mendeleev predicted the existence of certain elements not known at that time and named two of them as Eka-silicon and Eka-aluminium.Q. Mendeleev arranged the periodic table on the basis of their fundamental property

Read the passage and answer the questions :Mendeleev was a Russian chemist, who contributed the most for the development of periodic table of elements wherein the elements were arranged on the basis of their fundamental property, the atomic mass and also on the similarity of chemical properties. Only 63 elements were known at his time. He arranged the 63 elements in the increasing order of their atomic masses and found that there was a periodic recurrence of elements with similar physical and chemical properties. He observed that elements with similar properties fall in the same vertical column. These vertical columns are called groups and horizontal rows of elements are called periods. Mendeleev predicted the existence of certain elements not known at that time and named two of them as Eka-silicon and Eka-aluminium.Q. Eka aluminium and eka silicon were later replaced respectively as

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Three elements X ,Y and Z having atomic number 11,7 and 16 respectively react with oxygen to form their oxides a)arrange these arrange their oxides in increasing order of the basic nature B) give reason for your answer?
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