Q. Which group of the periodic table contains the halogens?
A.
Group 1
B.
Group 2
C.
Group 17
D.
Group 18
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Solution
Halogens are located in Group 17 of the periodic table.
Correct Answer:
C
— Group 17
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Q. Which group of the periodic table contains the noble gases?
A.
Group 1
B.
Group 2
C.
Group 17
D.
Group 18
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Solution
Noble gases are found in Group 18 of the periodic table.
Correct Answer:
D
— Group 18
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Q. Which haloalkane has the highest boiling point?
A.
CH3Cl
B.
C2H5Br
C.
C3H7Cl
D.
C4H9I
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Solution
C4H9I has the highest boiling point due to the larger molecular size and stronger van der Waals forces.
Correct Answer:
D
— C4H9I
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Q. Which haloalkane is expected to have the highest boiling point?
A.
CH3Cl
B.
C2H5Cl
C.
C3H7Cl
D.
C4H9Cl
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Solution
C4H9Cl (butyl chloride) has the highest molecular weight and thus the highest boiling point due to increased van der Waals forces.
Correct Answer:
D
— C4H9Cl
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Q. Which haloalkane is least soluble in water?
A.
Chloroethane
B.
Bromoethane
C.
Iodoethane
D.
Fluoroethane
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Solution
Iodoethane is least soluble in water due to its larger non-polar iodine atom, which decreases the overall polarity of the molecule.
Correct Answer:
C
— Iodoethane
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Q. Which haloalkane is most likely to undergo elimination reactions? (2023)
A.
1-bromopropane
B.
2-bromobutane
C.
3-bromobutane
D.
Bromobenzene
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Solution
3-bromobutane is more likely to undergo elimination reactions due to the presence of a tertiary carbon.
Correct Answer:
C
— 3-bromobutane
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Q. Which haloalkane would you expect to have the highest boiling point?
A.
Chloroethane
B.
Bromoethane
C.
Iodoethane
D.
Fluoroethane
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Solution
Iodoethane has the highest boiling point due to the larger size and greater polarizability of iodine, leading to stronger van der Waals forces.
Correct Answer:
C
— Iodoethane
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Q. Which historical figure is credited with the unification of Italy in the 19th century?
A.
Giuseppe Garibaldi
B.
Count Camillo di Cavour
C.
Victor Emmanuel II
D.
Mazzini
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Solution
Count Camillo di Cavour was instrumental in the unification of Italy, serving as the Prime Minister of the Kingdom of Sardinia.
Correct Answer:
B
— Count Camillo di Cavour
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Q. Which historical figure is known for advocating for the rights of the marginalized and promoting inclusive growth through education? (1956)
A.
B.R. Ambedkar
B.
Mahatma Gandhi
C.
Jawaharlal Nehru
D.
Sardar Vallabhbhai Patel
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Solution
B.R. Ambedkar was a strong advocate for the rights of the marginalized, emphasizing education as a means to achieve inclusive growth.
Correct Answer:
A
— B.R. Ambedkar
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Q. Which hormone is involved in the process of apical dominance? (2019)
A.
Gibberellins
B.
Auxins
C.
Cytokinins
D.
Ethylene
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Solution
Auxins are primarily responsible for maintaining apical dominance by inhibiting the growth of lateral buds.
Correct Answer:
B
— Auxins
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Q. Which hormone is involved in the process of fruit ripening? (2020)
A.
Gibberellins
B.
Auxins
C.
Ethylene
D.
Cytokinins
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Solution
Ethylene is the hormone that plays a key role in the ripening of fruits.
Correct Answer:
C
— Ethylene
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Q. Which hormone is involved in the regulation of apical dominance? (2019)
A.
Auxins
B.
Cytokinins
C.
Gibberellins
D.
Ethylene
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Solution
Auxins play a crucial role in maintaining apical dominance by inhibiting the growth of lateral buds.
Correct Answer:
A
— Auxins
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Q. Which hormone is involved in the regulation of calcium levels in the blood? (2023)
A.
Calcitonin
B.
Parathyroid hormone
C.
Insulin
D.
Glucagon
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Solution
Parathyroid hormone (PTH) is responsible for increasing blood calcium levels by promoting calcium release from bones and increasing calcium absorption in the intestines.
Correct Answer:
B
— Parathyroid hormone
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Q. Which hormone is involved in the regulation of stomatal closure during water stress? (2023)
A.
Gibberellins
B.
Cytokinins
C.
Abscisic acid
D.
Auxins
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Solution
Abscisic acid is involved in the regulation of stomatal closure during water stress to prevent water loss.
Correct Answer:
C
— Abscisic acid
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Q. Which hormone is involved in the regulation of the menstrual cycle? (2021)
A.
Progesterone
B.
Testosterone
C.
Cortisol
D.
Insulin
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Solution
Progesterone is a hormone that plays a key role in regulating the menstrual cycle and maintaining pregnancy.
Correct Answer:
A
— Progesterone
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Q. Which hormone is involved in the regulation of water balance in the body? (2022)
A.
Aldosterone
B.
Insulin
C.
Thyroxine
D.
Adrenaline
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Solution
Aldosterone is a hormone that helps regulate water balance by promoting sodium retention in the kidneys, which in turn affects water retention.
Correct Answer:
A
— Aldosterone
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Q. Which hormone is primarily involved in the regulation of stomatal opening?
A.
Auxin
B.
Gibberellin
C.
Abscisic acid
D.
Cytokinin
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Solution
Abscisic acid plays a key role in closing stomata during water stress, thus regulating water loss.
Correct Answer:
C
— Abscisic acid
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Q. Which hormone is primarily involved in the regulation of water balance in the body? (2022)
A.
Aldosterone
B.
Antidiuretic hormone (ADH)
C.
Cortisol
D.
Insulin
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Solution
Antidiuretic hormone (ADH), also known as vasopressin, plays a key role in regulating water balance by promoting water reabsorption in the kidneys.
Correct Answer:
B
— Antidiuretic hormone (ADH)
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Q. Which hormone is primarily involved in the regulation of water loss in plants? (2023)
A.
Auxin
B.
Gibberellin
C.
Abscisic acid
D.
Cytokinin
Show solution
Solution
Abscisic acid plays a crucial role in regulating water loss by causing stomatal closure during water stress.
Correct Answer:
C
— Abscisic acid
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Q. Which hormone is primarily involved in the response of plants to drought stress? (2023)
A.
Gibberellins
B.
Auxins
C.
Abscisic acid
D.
Cytokinins
Show solution
Solution
Abscisic acid plays a crucial role in helping plants respond to drought stress by closing stomata.
Correct Answer:
C
— Abscisic acid
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Q. Which hormone is primarily responsible for fruit ripening? (2023)
A.
Auxins
B.
Gibberellins
C.
Ethylene
D.
Cytokinins
Show solution
Solution
Ethylene is the primary hormone responsible for the ripening of fruits.
Correct Answer:
C
— Ethylene
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Q. Which hormone is primarily responsible for plant growth? (2023)
A.
Ethylene
B.
Auxin
C.
Gibberellin
D.
Abscisic acid
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Solution
Auxin is a plant hormone that promotes cell elongation and is crucial for growth.
Correct Answer:
B
— Auxin
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Q. Which hormone is primarily responsible for promoting cell elongation in plants? (2021)
A.
Gibberellins
B.
Auxins
C.
Cytokinins
D.
Ethylene
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Solution
Auxins are known to promote cell elongation by loosening the cell walls, allowing cells to expand.
Correct Answer:
B
— Auxins
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Q. Which hormone is primarily responsible for regulating the menstrual cycle? (2022)
A.
Testosterone
B.
Estrogen
C.
Progesterone
D.
Insulin
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Solution
Estrogen plays a crucial role in regulating the menstrual cycle, along with progesterone.
Correct Answer:
B
— Estrogen
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Q. Which hormone is primarily responsible for the fight-or-flight response? (2019)
A.
Cortisol
B.
Epinephrine
C.
Insulin
D.
Thyroxine
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Solution
Epinephrine (adrenaline) is the primary hormone responsible for the fight-or-flight response, preparing the body for quick action.
Correct Answer:
B
— Epinephrine
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Q. Which hormone is produced by the thyroid gland? (2023)
A.
Insulin
B.
Thyroxine
C.
Cortisol
D.
Adrenaline
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Solution
Thyroxine is produced by the thyroid gland and plays a crucial role in regulating metabolism.
Correct Answer:
B
— Thyroxine
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Q. Which hormone is responsible for the 'fight or flight' response? (2023)
A.
Cortisol
B.
Adrenaline
C.
Insulin
D.
Thyroxine
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Solution
Adrenaline (epinephrine) is the hormone that prepares the body for a 'fight or flight' response during stressful situations.
Correct Answer:
B
— Adrenaline
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Q. Which hormone is responsible for the development of secondary sexual characteristics in males? (2019)
A.
Estrogen
B.
Progesterone
C.
Testosterone
D.
Luteinizing hormone
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Solution
Testosterone is the hormone responsible for the development of secondary sexual characteristics in males, such as increased muscle mass and body hair.
Correct Answer:
C
— Testosterone
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Q. Which hormone is responsible for the regulation of metabolism and energy levels? (2022)
A.
Thyroxine
B.
Insulin
C.
Testosterone
D.
Estrogen
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Solution
Thyroxine (T4) is a hormone produced by the thyroid gland that plays a crucial role in regulating metabolism and energy levels.
Correct Answer:
A
— Thyroxine
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Q. Which hormone is responsible for the ripening of fruits?
A.
Gibberellins
B.
Ethylene
C.
Cytokinins
D.
Auxins
Show solution
Solution
Ethylene is a plant hormone that promotes the ripening of fruits and is involved in various aspects of plant growth and development.
Correct Answer:
B
— Ethylene
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