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Answer : 2. "35 kg"

Q: Ethanol is converted into ethoxy ethane, 2629 0

  • 1
    by heating excess of ethanol with conc. H2SO4 at 140°C
    Correct
    Wrong
  • 2
    by treating with conc. H2SO4 at room temperature
    Correct
    Wrong
  • 3
    by treating with conc. H2SO4 at 273 K
    Correct
    Wrong
  • 4
    by heating Ethanol with excess of conc. H2SO4 at 443 K
    Correct
    Wrong
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Answer : 1. "by heating excess of ethanol with conc. H2SO4 at 140°C"
Explanation :

Answer: A) by heating excess of ethanol with conc. H2SO4 at 140°C Explanation:

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Answer : 3. "K & L"
Explanation :

Answer: C) K & L Explanation: Monday          - N  - Yellow Tuesday         - L  - White Wednesday    - O  - Red Thursday       - Q  - Orange Friday           - M  - Blue Saturday       - P  - Grey Sunday         - K  - Black From the above table, K & L visits Sunday & Tuesday and their favourite colors are Black and white respectively.

Q:

In these questions read each sentence to find out whether there is any error in it. If there is no error, the answer is (D).

Each of the girls (A) / have come (B) / with her books. (C) / No Error (D)

2628 1

  • 1
    A
    Correct
    Wrong
  • 2
    B
    Correct
    Wrong
  • 3
    C
    Correct
    Wrong
  • 4
    D
    Correct
    Wrong
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Answer : 2. "B"

Q:

फोटोग्राफी में प्राथमिक रंग होते हैं –

2627 0

  • 1
    (लाल, नीला, पीला)
    Correct
    Wrong
  • 2
    (लाल, पीला, हरा)
    Correct
    Wrong
  • 3
    (लाल, नीला, हरा)
    Correct
    Wrong
  • 4
    (लाल, हरा, सियान)
    Correct
    Wrong
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Answer : 3. "(लाल, नीला, हरा)"

Q:

कीबोर्ड की सबसे लम्बी कुंजी कौनसी है?

2627 0

  • 1
    होम
    Correct
    Wrong
  • 2
    एन्टर
    Correct
    Wrong
  • 3
    स्पेस बार
    Correct
    Wrong
  • 4
    शिफ्ट
    Correct
    Wrong
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Answer : 3. "स्पेस बार"

Q: The last two digits of 2151415? 2627 0

  • 1
    81
    Correct
    Wrong
  • 2
    61
    Correct
    Wrong
  • 3
    91
    Correct
    Wrong
  • 4
    51
    Correct
    Wrong
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Answer : 4. "51"
Explanation :

Answer: D) 51 Explanation: Unit digit of this expression is always 1 as the base ends with 1.  For the tenth place digit we need to multiply the digit in the tenth place of the base and unit digit of the power and take its unit digit. i.e, tenth place digit in 2151 is 5 and tenth place digit in power 415 is 1 And the units digit in the product of 5 x 1 = 5   Therefore, last two digits of 2151415 is 51.

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