Everyday Science MCQs

5120 MCQs  (Page 396 of 512)

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Shielding effect across the period_________________?
A. Increases
B. Decreases
C. Can not be predicted
D. Remains constant
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Higher value of electron affinity means__________________?
A. Atom will lose electron easily
B. Atom will gain electron easily
C. Atom may form di-positive ion
D. The reason is unknown
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Melting points of VII-A group elements down the group ____________________?
A. Increase
B. Decrease
C. Remain constant
D. No regular trend
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Many properties of an element and its compounds can be predicted from the position of the element in the periodic table. What property could not be predicted in this way ?
A. The nature of its oxides
B. The charge on its ions
C. The formula of its oxide
D. Its number of isotopes
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The Distance of Neptune From Sun is ________ astronomical unit.
A. 28
B. 30
C. 32
D. None of these
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Terrestrial plants carry out ________ of total photosynthesis on the earth?
A. 10%
B. 20%
C. 50%
D. None of these
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PH of fresh Saliva?
A. 6
B. 7
C. 8
D. 0
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HIV is a ________ virus?
A. Ssrna
B. Dsrna
C. Ssdna
D. Dsdna
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AIDS is caused by ________ virus?
A. Hav
B. Hiv
C. Rabies
D. Pigs
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Mendal studied _________ traits of pisum sativum?
A. Six
B. Seven
C. Eight
D. Nine
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Word of the Day
27 Jul
Widen
make or become wider.
چوڑا ہونا، کشادہ کرنے کا عمل

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