10 - அறிவியல் - வேதியியல் - 12. தனிமங்களின் ஆவர்த்தன வகைப்பாடு

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By worshiping the elephant, we can protect ourselves from the negative effects of the elephant's anger. Therefore, the act of worshiping the elephant's tusks can be referred to as "துத்தநாக முலாம் பூசுதல்" which means "worshiping the elephant's tusks".

The given statement states that gold is not found in its pure form. It does not occur naturally with air or water. Therefore, it is in a separate state. The word "தனித்த" in Tamil means separate or distinct. Hence, the correct answer is "தனித்த".

சல்பைடு தாதுவை அடர்ப்பிக்கப்பயன்படும் முறை refers to the method of using a slide to illustrate a concept or idea. The correct answer, நுரைமிதப்பு முறை, translates to "explanatory method" which implies that using slides is an effective way to explain or present information. Therefore, the correct answer aligns with the given question.

ரசக் கலவை என்பது உலோகமும், பாதரசம் ம் கலந்த கலவை.

The word "பாக்சைட்" is transliterated as "paaksait" in English, which is similar to the word "Bauxite". Bauxite is a type of rock that is the main source of aluminum. Therefore, the correct answer is "அலுமினியம்" (aluminum).

The given statement mentions that aluminum is extracted from bauxite. Therefore, the blank should be filled with the word "பாக்சைட்" which means bauxite in Tamil.

The first sentence states that one of the two elements in the first series is hydrogen. Therefore, the second element in the series must be helium, as it is the only option given that is not hydrogen.

The atomic number of iron is 26, which means it has 26 protons. The electron configuration of an element represents the arrangement of electrons in its atomic orbitals. The electron configuration of iron is 2, 8, 14, 2, which means it has 2 electrons in the first energy level, 8 electrons in the second energy level, 14 electrons in the third energy level, and 2 electrons in the fourth energy level. Therefore, the correct answer is 2, 8, 14, 2.

According to the given statement, the physical and chemical properties of atoms change periodically in accordance with the modern periodic table. Therefore, the atomic number of elements is the characteristic that changes periodically in the periodic table.

The explanation for the given correct answer is that both the statement "உறுதிப்படுத்துதல்" (certainty) and the statement "காரணம் இரண்டும் சரி" (both reasons are correct) are true. This implies that the certainty of not cleaning the copper vessels is the reason for the appearance of green color on them.

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The given answer states that the sequence of elements in a modern arithmetic series is "கிடைமட்டத் தொடர்கள், செங்குத்து வரிசைகள் (தொகுதிகள்)". This means that the sequence starts with "கிடைமட்டத் தொடர்கள்" and then follows with "செங்குத்து வரிசைகள் (தொகுதிகள்)". This answer accurately describes the pattern of the elements in a modern arithmetic series.

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The given answer "இடைநிலைத் தனிமங்கள்" (intermediate numbers) is correct because the question states that we are calling the numbers from 3 to 12 in the arithmetic sequence as "தனிம வரிசை அட்டவணையில்" (arithmetic sequence). In an arithmetic sequence, the intermediate numbers between two given numbers are called intermediate terms or intermediate numbers. Therefore, "இடைநிலைத் தனிமங்கள்" is the appropriate term to describe the numbers between 3 and 12 in the given arithmetic sequence.

The answer states that the statement is correct because aluminum powder is a strong reducing agent. This means that it has the ability to donate electrons to other substances, causing them to be reduced. In this case, aluminum reacts with Fe2O3 (iron oxide) to produce aluminum oxide and iron. Since aluminum is able to reduce iron oxide, it can be used in thermite reactions.

The given options are combinations of three elements: copper (தாமிரம்), silver (வெள்ளி), and gold (தங்கம்). The correct answer is the combination that includes all three elements, which is "தாமிரம், வெள்ளி மற்றும் தங்கம்" (copper, silver, and gold).

The given expression can be simplified by performing the division first, followed by multiplication. Therefore, the correct answer is obtained by dividing 22 by 24 and then multiplying the result by 100.

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The given question is in Tamil language and it asks for the number of series in a modern periodic table. The correct answer is 7 because there are 7 periods or series in a modern periodic table.

The given statement states that all the odd numbers are included in the basic set. Since 14 is an even number, it is not included in the basic set. Therefore, the correct answer is 14.

The correct answer is (3) Al­2­O3 2H2O. This is because the compound "பாக்சைட்" is a hydrate of aluminum oxide, which means it contains water molecules. The number 2 in the formula indicates that there are 2 water molecules associated with each molecule of Al­2­O3.

In the given question, it is stated that there are 8 atoms in the third row. The question asks how many electrons are there in those atoms. The number of electrons in an atom is determined by its atomic number. The atomic number of an element corresponds to the number of protons in its nucleus, and since atoms are electrically neutral, it also corresponds to the number of electrons. Therefore, the correct answer is 5, as there are 5 electrons in the atoms present in the third row.

In an electrolytic cell, the positive electrode is called the anode, and the negative electrode is called the cathode. During the electrolysis of water, oxygen gas is produced at the anode, while hydrogen gas is produced at the cathode. Therefore, in the given question, the correct answer is "ஆக்ஸிஜன்" (oxygen).

The given question asks about the material used in the construction of the world's tallest building. The options provided are iron, gold, silver, and aluminum. The correct answer is "இரும்பு" which translates to "iron" in English. Therefore, the correct answer is iron because it is the material used in the construction of the world's tallest building.