Chemistry-
General
Easy

Question

Molecule which contains 4 bond pairs and 2 lone pairs of electrons on the central atom is

  1. XeF subscript 2
  2. CO subscript 2
  3. XeF subscript 4
  4. SF subscript 6

The correct answer is: XeF subscript 4

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Read the following passage and answer the questions
Aunt Jackie's Ring.
For Mary's birthday, her aunt gave her a ring that was more than 100 years old. "Take good care of it," her aunt warned. She did just that until are day Mary looked down at her hand and noticed the ring was gone.
Aunt Jackie is going to be or disappointed in me, thought Mary. Then Mary remembered she put the ring in her pocket when she washed her hands at the sink. Thank goodness! Mary said to herself. After that, she never took off Aunt Jackie's ring again.
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Aunt Jackie's Ring.
For Mary's birthday, her aunt gave her a ring that was more than 100 years old. "Take good care of it," her aunt warned. She did just that until are day Mary looked down at her hand and noticed the ring was gone.
Aunt Jackie is going to be or disappointed in me, thought Mary. Then Mary remembered she put the ring in her pocket when she washed her hands at the sink. Thank goodness! Mary said to herself. After that, she never took off Aunt Jackie's ring again.
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Read the poem and choose the rhyming words
Red  red apples hanging on the tree.
One for mummy are for daddy and one for me
Red red tomato cut in to three
One for mummy, one for daddy and one for me!
Red red cherries very sweet
Not for mummy not for daddy all for me!
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Red  red apples hanging on the tree.
One for mummy are for daddy and one for me
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One for mummy, one for daddy and one for me!
Red red cherries very sweet
Not for mummy not for daddy all for me!
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Two bars A and B of circular cross section, same volume and made of the same material, are subjected to tension. If the diameter of A is half that of B and if the force applied to both the rod is the same and it is in the elastic limit, the ratio of extension of A to that of B will be

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<img src="https://mycourses.turito.com/tokenpluginfile.php/c161933dbfaab094c54655ab71e9b8f0/1/question/questiontext/965284/1/1211149/Picture905.png" alt=""

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<img src="https://mycourses.turito.com/tokenpluginfile.php/c161933dbfaab094c54655ab71e9b8f0/1/question/questiontext/965284/1/1211149/Picture905.png" alt=""

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If the resultant of all the external forces acting on a system of particles is zero, then form an inertial frame, one can surely say that

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