کیمیائی فارمولے اور آئنی مرکبات (Chemical Formulas and Ionic Compounds)

ChemistryChemical Formulas of Binary Ionic CompoundsEasy

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1- کسی آئیونک کمپاونڈ کا کیمیکل فارمولا لکھنے کے لیے آپ کو پہلے کیا معلوم کرنا ہوگا؟

(a) ہر ایٹم میں الیکٹرونز کی تعداد (b) ہر ایٹم میں پروٹونز کی تعداد

(c) کیشائٹرز اور اینائٹرز اور ان کے چارجز (d) ہر ایلیمنٹ کی آکسیڈیشن اسٹیٹ

2- ایلومینیم آکسائیڈ کا فارمولا کیا ہے؟

(a) $AlO$ (b) $Al_2O$ (c) $Al_2O_3$ (d) $AlO_2$

3- میگنیشیم نائٹرائڈ کا فارمولا کیا ہے؟

(a) $MgN$ (b) $Mg_2N$ (c) $Mg_3N_2$ (d) $MgN_2$

4- ایلومینیم آئن پر کیا چارج ہوتا ہے؟

(a) $1+$ (b) $2+$ (c) $3+$ (d) $4+$

5- نائٹرائڈ آئن پر کیا چارج ہوتا ہے؟

(a) $1-$ (b) $2-$ (c) $3-$ (d) $4-$

6- ہماری زندگی میں استعمال ہونے والی تمام کیمیکل مصنوعات کی ترکیب اور مقدار کا تعین معلوم کرنے کے لیے استعمال کرتے ہیں۔

(a) اسٹائیومیٹرک کیلکولیشنز (b) ایووگیڈرو کا قانون

(c) قانون بقائے مادہ (d) متعین نسبت کا قانون

Animated Video Solution

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Step by Step Written Solution

1
Step 1

Hello students. Today we are going to solve a set of multiple choice questions related to the chemical formulas of binary ionic compounds. Let's start with the first question.

Chemical Formulas of Binary Ionic Compounds

2
Step 2

The first question asks: To write the chemical formula of an ionic compound, what must you first know? Let's look at the options.

Question 1

کسی آئیونک کمپاؤنڈ کا کیمیکل فارمولا لکھنے کے لیے آپ کو پہلے کیا معلوم کرنا ہوگا؟

(a) Number of electrons in each atom

(b) Number of protons in each atom

(c) Cations and anions and their charges

(d) Oxidation state of each element

3
Step 3

To form an ionic compound, we need to balance the positive and negative charges. Therefore, we must know which cations and anions are involved and what their charges are. So, option C is correct.

4
Step 4

Question number two asks for the formula of Aluminum Oxide. Let's find out how to derive it.

Question 2

ایلومینیم آکسائیڈ کا فارمولا کیا ہے؟

$$Al^{3+}, O^{2-}$$
5
Step 5

Aluminum has a charge of three plus and Oxygen has a charge of two minus. To make the compound neutral, we use the cross-over method.

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Step 6

This gives us the formula A L two O three, which corresponds to option C.

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Step 7

Now, let's look at question three: What is the formula of Magnesium Nitride?

Question 3

میگنیشیم نائٹرائڈ کا فارمولا کیا ہے؟

$$Mg^{2+}, N^{3-}$$
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Step 8

Magnesium ions have a charge of two plus and Nitride ions have a charge of three minus. By crossing over the charges, we get M G three N two.

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About This Question

Subject
Chemistry
Topic
Chemical Formulas of Binary Ionic Compounds
Difficulty
Easy
Question Type
Multiple Choice

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