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Q. No.Correct statement regarding transuranic elements is :
1. They have higher atomic number than uranium.
2. They are lighter than uranium.
3. They have lower atomic number than uranium.
4. They have same atomic number as uranium.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe correct sequence of increasing order of density is:
1. Li < K< Na < Rb < Cs
2. Li < Na < K < Rb < Cs
3. Cs < Rb < K < Na < Li
4. K < Li < Na < Rb < Cs
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyGeneral electronic configuration of outermost and penultimate shell of an atom is
(n - 1)s2 (n - 1) p6 (n - 1)dx ns2. If n = 4 and x = 5, the number of proton in the nucleus is:
1. > 25
2. < 24
3. 25
4. 30
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe maximum number of valence electrons possible for atoms in the second period of the periodic table is:
1. 18
2. 10
3. 8
4. 2
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe element having atomic number 19, is:
1. an inert gas
2. a metal with oxidation number +1
3. a non-metal with oxidation number -3
4. a metal with oxidation number -3
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich of the following has the least density?
1. Na
2. Li
3. Mg
4. K
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyEka aluminium and Eka silicon are now known as:
1. Ga and Ge
2. Al and Si
3. Fe and S
4. H+ and Si
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyAn element having the electronic configuration of its atom ns2 np2 should have similar properties to those of:
1. Sodium
2. Carbon
3. Magnesium
4. Oxygen
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe order of basic character of given oxides is:
1. Na2O > MgO > Al2O3 > CuO
2. MgO > Al2O3 > CuO > Na2O
3. Al2O3 > MgO > CuO > Na2O
4. CuO > Na2O > MgO > Al2O3
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA variable oxidation state is shown by which of the following?
1. Na
2. Cu
3. Mg
4. Al
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