What message did the Chandrayaan-2 lunar orbiter send to Chandrayaan-3’s lander module when it established contact with it in August 2023?
See answer
Correct answer: (C) “Welcome, buddy” When contact was made with the lander of Chandrayaan-3, the orbiter of Chandrayaan-2 sent the message ‘Welcome, buddy’.
1 marks · 2023 · Set A
Question 52
Name the former President of China who crushed the pro-democracy movement in 1989.
See answer
Correct answer: (B) Yang Shangkun During the pro-democracy movement of 1989 the President of China was Yang Shangkun (1988–1993), and martial law was declared over his signature. Jiang Zemin became President in 1993, after the movement. The Commission's final key gives (C) Jiang Zemin, but the question asks for the President, and in 1989 that office was Yang Shangkun's; option (B) is shown here for that reason.
1 marks · 2023 · Set A
Question 53
Who was elected for a second term as Ireland’s Prime Minister?
See answer
Correct answer: (C) Leo Varadkar Leo Varadkar was elected Prime Minister (Taoiseach) of Ireland for a second term. Sanna Marin headed Finland and Robert Abela Malta.
1 marks · 2023 · Set A
Question 54
The African Union was made a permanent member at the G-20 Summit held in India. Who is the Chairman of the African Union?
See answer
Correct answer: (A) Azali Assoumani The African Union was given permanent membership at the G20 summit in New Delhi in 2023; its chairman at the time was Azali Assoumani, President of the Comoros.
1 marks · 2023 · Set A
Question 55
Arrange the following physiographic units of India in ascending order by geographical area: 1. Central Highlands; 2. Great Plains; 3. Coastal Plains; 4. Northern Mountains. Select the correct answer using the codes below.
See answer
Correct answer: (A) 3, 1, 2, 4 Arranged in ascending order of area, that is from the smallest unit to the largest, the correct order among the options given is 3, 1, 2, 4.
1 marks · 2023 · Set A
Question 56
Arrange the following ranges from north to south: 1. Ladakh; 2. Karakoram; 3. Pir Panjal; 4. Zanskar. Select the correct answer using the codes below.
See answer
Correct answer: (B) 2, 1, 4, 3 From north to south the Himalayan ranges come in this order—Karakoram, Ladakh, Zanskar and then Pir Panjal. So the correct order is 2, 1, 4, 3.
1 marks · 2023 · Set A
Question 57
During the monsoon season in India, most cyclones originate
See answer
Correct answer: (B) between 10° N and 15° N latitude Most cyclones of the Indian monsoon season form in the Bay of Bengal between 10° N and 15° N, where the sea temperature and the humidity are both favourable.
1 marks · 2023 · Set A
Question 58
Which of the following areas is not landslide-prone?
See answer
Correct answer: (B) Eastern Ghats Landslides happen where the slopes are steep and the rain heavy—the Himalaya and the Western Ghats are such. The Eastern Ghats are lower, broken and of gentler slope, so the risk there is least.
1 marks · 2023 · Set A
Question 59
Which of the following coasts of India is most affected by violent tropical cyclones?
See answer
Correct answer: (B) Coromandel The Coromandel coast faces the Bay of Bengal, where most tropical cyclones form, so it is the worst affected. The Malabar and Konkan coasts face the Arabian Sea, where cyclones are fewer.
1 marks · 2023 · Set A
Question 60
When running water cuts through clayey soils and makes deep channels, it leads to
See answer
Correct answer: (A) gully erosion When running water cuts through clayey soil and makes deep channels it is called gully erosion, and such land is known as badland. In sheet erosion the top layer is washed away evenly instead.
1 marks · 2023 · Set A
Question 61
Which of the following receives heavy rainfall in October and November?
See answer
Correct answer: (B) Coromandel Coasts In October and November the monsoon retreats, and the winds that cross the Bay of Bengal bring heavy rain to the Coromandel coast, the eastern coast of Tamil Nadu. In the rest of India the rains are nearly over by then.
1 marks · 2023 · Set A
Question 62
Cultivation of fruits and vegetables is called
See answer
Correct answer: (C) horticulture Growing fruits and vegetables is called horticulture. Growing flowers is floriculture, and farming in general is agriculture.
1 marks · 2023 · Set A
Question 63
Who provided leadership in the districts of Patna, Ara and Shahabad during the Revolt of 1857 in Bihar?
See answer
Correct answer: (C) Kunwar Singh The revolt of 1857 in the Patna, Ara and Shahabad region of Bihar was led by Kunwar Singh of Jagdishpur. Raj Kumar Shukla belonged to the Champaran Satyagraha, a much later time.
1 marks · 2023 · Set A
Question 64
The Partition of Bengal was made effective on
See answer
Correct answer: (C) 16 October 1905 The partition of Bengal announced by Lord Curzon came into effect on 16 October 1905. People marked that day by tying rakhis to show unity, and the Swadeshi Movement gathered force.
1 marks · 2023 · Set A
Question 65
The Quit India Resolution was adopted by the Congress in Bombay on
See answer
Correct answer: (B) 8 August 1942 The Quit India resolution was passed by the Congress at the Gowalia Tank maidan in Bombay on 8 August 1942, and Gandhiji gave the call ‘Do or Die’. The next day, 9 August, the senior leaders were arrested.
1 marks · 2023 · Set A
Question 66
The British ruled India for a long period due to the
See answer
Correct answer: (C) policy of Divide and Rule The British followed a policy of divide and rule, widening differences of religion, caste and princely state so that Indians could not resist together. That was the main reason their rule lasted so long.
1 marks · 2023 · Set A
Question 67
On which of the following dates was Queen Victoria’s Proclamation issued?
See answer
Correct answer: (C) 1 November 1858 After the revolt of 1857 Queen Victoria's Proclamation was read out by Lord Canning at Allahabad on 1 November 1858. With it the Company's rule ended and India passed to the British Crown.
1 marks · 2023 · Set A
Question 68
Which of the following statements is/are correct?
See answer
Correct answer: (D) More than one of the above Raja Ram Mohan Roy founded the Brahmo Samaj, Swami Dayanand gave the call ‘Back to the Vedas’, and Vivekananda took part in the Chicago Parliament of Religions in 1893—all three statements are correct, so more than one option is right.
1 marks · 2023 · Set A
Question 69
Who among the following became India’s unofficial Ambassador to England?
See answer
Correct answer: (B) Dadabhai Naoroji Dadabhai Naoroji lived in England for many years, building opinion there in India's favour, and was even elected to the British Parliament—which is why he was called India's unofficial Ambassador.
1 marks · 2023 · Set A
Question 70
Who described the Government of India Act, 1935 as a ‘Charter of Slavery’?
See answer
Correct answer: (E) None of the above It was Jawaharlal Nehru who called the Government of India Act, 1935 a ‘Charter of Slavery’. All three names given are wrong, so the answer is ‘None of the above’.
1 marks · 2023 · Set A
Question 71
What are the key factors of solid-state reactions?
See answer
Correct answer: (D) More than one of the above
1 marks · 2023 · Set A
Question 72
Which approach can be employed to produce a high degree of homogeneity in the creation of ZnFe₂O₄ spinel?
See answer
Correct answer: (C) Coprecipitation method
1 marks · 2023 · Set A
Question 73
In the zone-melting approach, which principle is used?
See answer
Correct answer: (B) Impurities concentrate in the liquid phase more than in the solid phase.
1 marks · 2023 · Set A
Question 74
Which solid structure has a definite and sharp melting point?
See answer
Correct answer: (A) Crystalline solids
1 marks · 2023 · Set A
Question 75
_____ is a crystalline substance’s basic repetitive structural unit.
See answer
Correct answer: (C) Unit cell
1 marks · 2023 · Set A
Question 76
Sulfur exists in two polymorphic forms _____ and _____.
See answer
Correct answer: (A) rhombic, monoclinic
1 marks · 2023 · Set A
Question 77
What is the total number of Bravais lattices in crystal structures?
See answer
Correct answer: (C) 14
1 marks · 2023 · Set A
Question 78
What are the initial materials for crystallization?
See answer
Correct answer: (C) Aqueous solution, melt, glass or gel
1 marks · 2023 · Set A
Question 79
Which volume occupied by a single gas in a mixture at the same temperature and pressure is referred to as the single-gas volume?
See answer
Correct answer: (B) Partial volume
1 marks · 2023 · Set A
Question 80
The pressure that a single component in a gaseous mixture would exert if it existed alone in the same volume as the mixture and at the same temperature is called
See answer
Correct answer: (B) partial pressure
1 marks · 2023 · Set A
Question 81
_____ obeys Raoult’s law at all stages of concentration.
See answer
Correct answer: (A) Ideal solution
1 marks · 2023 · Set A
Question 82
When two perfect solutions, each of volume V, are combined, what is the resulting solution’s volume?
See answer
Correct answer: (B) 2V
1 marks · 2023 · Set A
Question 83
The negative side of the heat of solution or mixing is the
See answer
Correct answer: (D) More than one of the above
1 marks · 2023 · Set A
Question 84
A solution made up of numerous components, in which each component’s property is the weighted sum of its separate properties, is called
See answer
Correct answer: (A) ideal solution
1 marks · 2023 · Set A
Question 85
What is an example of camphor in N₂ gas?
See answer
Correct answer: (A) Solid-in-gas solution
1 marks · 2023 · Set A
Question 86
What happens when a solute crystal is added to a supersaturated solution?
See answer
Correct answer: (C) The solute precipitates out of the solution.
1 marks · 2023 · Set A
Question 87
Which of the following is not a viable option?
See answer
Correct answer: (A) Aerated drinks
1 marks · 2023 · Set A
Question 88
A cathode and an anode are the most common components of an electrochemical cell. Which claim about the cathode is correct?
See answer
Correct answer: (B) Electrons move into the cathode.
1 marks · 2023 · Set A
Question 89
Which of the following claims about electrochemical cells is true?
See answer
Correct answer: (B) Cell potential is an intensive property.
1 marks · 2023 · Set A
Question 90
Which of the following does not belong to the category of electrochemical cells?
See answer
Correct answer: (B) Photovoltaic cell
1 marks · 2023 · Set A
Question 91
Which of the following assertions about the main cell is correct?
See answer
Correct answer: (A) An example of a primary cell is a mercury cell.
1 marks · 2023 · Set A
Question 92
In a dry cell, which of the following is the electrolyte?
See answer
Correct answer: (C) Ammonium chloride
1 marks · 2023 · Set A
Question 93
Which of the following statements about a lead storage cell (or lead-acid battery) is false?
See answer
Correct answer: (A) It is a primary cell.
1 marks · 2023 · Set A
Question 94
The conductivity of electrolytic conductors is due to
See answer
Correct answer: (B) movement of ions
1 marks · 2023 · Set A
Question 95
The process of transmitting electric current through an electrolyte’s solution to decompose it is known as
See answer
Correct answer: (C) electrolysis
1 marks · 2023 · Set A
Question 96
In a fuel cell, which of the following can be utilized as fuel?
See answer
Correct answer: (C) Hydrogen
1 marks · 2023 · Set A
Question 97
Which of the following is supplied to a fuel cell’s cathode?
See answer
Correct answer: (C) Oxygen
1 marks · 2023 · Set A
Question 98
The study of reaction kinetics is called
See answer
Correct answer: (D) More than one of the above
1 marks · 2023 · Set A
Question 99
The reaction rate constant can be defined as the rate of reaction when each reactant’s concentration is
See answer
Correct answer: (B) unity
1 marks · 2023 · Set A
Question 100
Which of the following is the correct temperature coefficient (n) expression?
See answer
Correct answer: (A) n = rate constant at T + 10° / rate constant at T°