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प्र: Is C2 Paramagnetic or Diamagnetic? 1684 0

  • 1
    Paramagnetic
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  • 2
    Diamagnetic
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  • 3
    Ferromagnetic
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  • 4
    Can't be determined
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उत्तर : 2. "Diamagnetic"
व्याख्या :

Answer: B) Diamagnetic Explanation: Paramagnetic Molecules :: If the Electronic configuration of a molecule has any unpaired electrons, then that molecule is said to be Paramagnetic. Diamagnetic Molecules :: If the Electronic configuration of a molecule has only paired or spin paired electrons, then that molecule is said to be Diamagnetic.   Here the molecule C2 has all paired electrons in its electronic configuration. So C2 is Diamagnetic. Whereas, B2 molecule has unpaired electrons. So B2 is Paramegnetic.

प्र: Wild animals are not considered a natural resource. 1684 0

  • 1
    TRUE
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  • 2
    FALSE
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उत्तर : 2. "FALSE"
व्याख्या :

Answer: B) FALSE Explanation: The given statement is False. Wild animals are considered as a natural resource. Natural resources are resources taken from nature to satisfy our needs. These natural resources are: 1) Air 2) Water 3) Soil 4) Plants 5) Animals 6) Minerals 7) Forests 8) Natural Gas 9) Coal 10) Petroleum.

प्र: Which one of the following is not a prime number? 1683 0

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    91
    सही
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  • 2
    71
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  • 3
    41
    सही
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  • 4
    31
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उत्तर : 1. "91"
व्याख्या :

Answer: A) 91 Explanation: Prime Numbers :: Numbers which are divisible by only 1 and itself are Prime Numbers.   It's answer will be 91. Because 91 can be divisible by 7,13,91,1. It is quite clear that prime number should be divisible only by itself and by 1.

प्र: Find the sum of the Arithmetic Series upto 36 terms 2, 5, 8, 11,... 1683 1

  • 1
    3924
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  • 2
    1962
    सही
    गलत
  • 3
    1684
    सही
    गलत
  • 4
    1452
    सही
    गलत
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उत्तर : 2. "1962"
व्याख्या :

Answer: B) 1962 Explanation: Arithmetic Series ::   An Arithmetic Series is a series of numbers in which each term increases by a constant amount.   How to find the sum of the Arithmetic Sequence or Series for the given Series ::   When the series contains a large amount of numbers, its impractical to add manually. You can quickly find the sum of any arithmetic sequence by multiplying the average of the first and last term by the number of terms in the sequence.   That is given by Sn = n(a1 + an)2 Where n = number of terms, a1 = first term, an = last term   Here Last term is given by an = a1 + n-1d where d = common difference   Now given Arithmetic Series is    2, 5, 8, 11,...   Here a1 = 2,  d = 3, n = 36    Now, an= a1 + n - 1d a36= 2 + 36 - 13 = 105 + 2 = 107    Now, Sum to 36 terms is given by   S36 = 36(2 + 107)2 = 36 x 1092 = 39242 = 1962       Therefore, Sum to 36 terms of the series 2, 5, 8, 11,... is 1962.

प्र: Who has become the first person to cross the Atlantic Ocean on standup paddle ? 1682 2

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    Jack Alberta
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  • 2
    Henary Christpher
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  • 3
    Christopher Bernard
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  • 4
    Chris Bertish
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उत्तर : 4. "Chris Bertish"
व्याख्या :

Answer: D) Chris Bertish Explanation: South African Chris Bertish has become the first person to cross the Atlantic Ocean on standup paddle. He made the epic 4,050-mile voyage alone at sea aboard his custom-built craft.

प्र: Hemavathi cut a cake into two halves and cuts one half into smaller pieces of equal size. Each of the small pieces is fifteen grams in weight. If she has nine pieces of the cake in all with her, how heavy was the original cake ? 1682 0

  • 1
    240 gms
    सही
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  • 2
    280 gms
    सही
    गलत
  • 3
    180 gms
    सही
    गलत
  • 4
    170 gms
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उत्तर : 1. "240 gms"
व्याख्या :

Answer: A) 240 gms Explanation: The nine pieces consist of 8 smaller equal pieces and one half cake piece.Weight of each small piece = 15 g.So, total weight of the cake = [2 x (15 x 8)]g = 240 g.

प्र: The more you take the more you leave behind. What is it? 1682 0

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उत्तर :
व्याख्या :

Footsteps.  Yes, as you walk forward, you will leave the footstep behind you.

प्र: Which of the following is the longest river in India? 1682 0

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    Godavari
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  • 2
    Ganga
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  • 3
    Yamuna
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  • 4
    Brahmaputra
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उत्तर : 2. "Ganga"
व्याख्या :

Answer: B) Ganga Explanation: India is a land of rivers. Rivers are generally treated as mothers and almost every major river of India has a legend regarding its origin.   The Ganges or Ganga is the longest river of India, if we consider the total distance covered by a river within India. Two major rivers of the Indian subcontinent – Brahmaputra and Indus – are though longer than the Ganges, but the distances these two rivers cover within India are much shorter than that of the Ganges. The Ganges is the most sacred river to the Hindus. The Ganges originates from Gangotri Glacier (Uttarakhand). The total length that the Ganges covers during its journey is 2,525 kilometers (1569 miles) before it discharges in the Bay of Bengal.   The Godavari, also known as 'Dakshin Ganga' – the South Ganges, is the second longest river of India. It originates from Triambakeshwar, Nasik (Maharashtra), and travels through Chhattisgarh, Telangana and Andhra Pradesh, before discharging into Bay of Bengal.

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