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Q:
In 1845, which German chemist published a method for the synthesis of acetic acid, a natural product containing two carbon atoms?
501 0

Answer : 4. "Hermann Kolbe"
Explanation :
1. In 1845, the German chemist who published a method for the synthesis of 'acetic acid', a natural product containing two carbon atoms, was Hermann Kolbe.
2. He created carbon disulfide with chlorine, and the end result was carbon tetrachloride.

Q:
Which of the following will be a negative ion?
632 0

Answer : 2. "If it has more electrons than neutrons"
Explanation :
If an atom has more electrons than protons, it is a negative ion or anion. If it has more protons than electrons, it is a positive ion.

Q:
What do you call the drugs that bind to the receptor site and inhibit its natural function?
463 0

Answer : 3. "Antagonists"
Explanation :
1. Name: Antagonist
2. Mechanism of action: By binding to the surface of the receptor, they cause opposition to the natural function.

Q:
Burning of coal is a ______ reaction.
366 0

Answer : 3. "combination"
Explanation :
1. The burning of coal is an example of a combination reaction (a combination).
2. When two or more elements combine to form a compound, it is called a combination reaction.

Q:
What do you call the type of drugs that mimic the natural messenger by switching on the receptor?
744 0

Answer : 3. "Agonist"

Q:
In 1931, who recognised that an aromatic compound must have an odd number of pairs of electrons, which can mathematically be written as 4n+2 (n = 0,1,2,3 etc.)?
517 0

Answer : 2. "Erich Huckel"

Q:
Which of the following is an organic compound with the formula C₆H₄Cl₂ that is used as a fumigant insecticide to control cloth months?
605 0

Answer : 1. "Paradichlorobenzene"

Q:
Starch in potatoes reacts with _____, turning to a blue colour.
564 1

Q: In 1845, which German chemist published a method for the synthesis of acetic acid, a natural product containing two carbon atoms? 501 0649aa86b1a612ce001f66c19

Answer : 4. "Hermann Kolbe" Explanation :1. In 1845, the German chemist who published a method for the synthesis of 'acetic acid', a natural product containing two carbon atoms, was Hermann Kolbe.2. He created carbon disulfide with chlorine, and the end result was carbon tetrachloride.

Q: Which of the following will be a negative ion? 632 0650ab26a63078e50a28c8adb

Answer : 2. "If it has more electrons than neutrons" Explanation :If an atom has more electrons than protons, it is a negative ion or anion. If it has more protons than electrons, it is a positive ion.

Q: What do you call the drugs that bind to the receptor site and inhibit its natural function? 463 0649a98d3c7d7c7e0672b7673

Answer : 3. "Antagonists" Explanation :1. Name: Antagonist2. Mechanism of action: By binding to the surface of the receptor, they cause opposition to the natural function.

Q: Burning of coal is a ______ reaction. 366 06491958013e8bde0322b983e

Answer : 3. "combination" Explanation :1. The burning of coal is an example of a combination reaction (a combination).2. When two or more elements combine to form a compound, it is called a combination reaction.

Q: What do you call the type of drugs that mimic the natural messenger by switching on the receptor? 744 064c390a7d3a6d4481ef1e4a3

Answer : 3. "Agonist"

Q: In 1931, who recognised that an aromatic compound must have an odd number of pairs of electrons, which can mathematically be written as 4n+2 (n = 0,1,2,3 etc.)? 517 0647de965e72c4684a1dcb8b3

Answer : 2. "Erich Huckel"

Q: Which of the following is an organic compound with the formula C6H4Cl2 that is used as a fumigant insecticide to control cloth months? 605 06441214c72ca731a9945cdd8

Answer : 1. "Paradichlorobenzene"

Q: Starch in potatoes reacts with _____, turning to a blue colour. 564 16439228372ca731a99323e96

Answer : 3. "Iodine "

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Q:
In 1845, which German chemist published a method for the synthesis of acetic acid, a natural product containing two carbon atoms?
501 0

Answer : 4. "Hermann Kolbe"
Explanation :
1. In 1845, the German chemist who published a method for the synthesis of 'acetic acid', a natural product containing two carbon atoms, was Hermann Kolbe.
2. He created carbon disulfide with chlorine, and the end result was carbon tetrachloride.

Q:
Which of the following will be a negative ion?
632 0

Answer : 2. "If it has more electrons than neutrons"
Explanation :
If an atom has more electrons than protons, it is a negative ion or anion. If it has more protons than electrons, it is a positive ion.

Q:
What do you call the drugs that bind to the receptor site and inhibit its natural function?
463 0

Answer : 3. "Antagonists"
Explanation :
1. Name: Antagonist
2. Mechanism of action: By binding to the surface of the receptor, they cause opposition to the natural function.

Q:
Burning of coal is a ______ reaction.
366 0

Answer : 3. "combination"
Explanation :
1. The burning of coal is an example of a combination reaction (a combination).
2. When two or more elements combine to form a compound, it is called a combination reaction.

Q:
What do you call the type of drugs that mimic the natural messenger by switching on the receptor?
744 0

Q:
In 1931, who recognised that an aromatic compound must have an odd number of pairs of electrons, which can mathematically be written as 4n+2 (n = 0,1,2,3 etc.)?
517 0

Q:
Which of the following is an organic compound with the formula C₆H₄Cl₂ that is used as a fumigant insecticide to control cloth months?
605 0

Q:
Starch in potatoes reacts with _____, turning to a blue colour.
564 1