These blood group persons are universal donors
A) ‘AB’ blood group
B) ‘B’ blood group
C) ‘O’ blood group
D) A’ blood group
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X persons can complete a work in Y days. Then, 3X persons can complete the same work in ……….. Days and `(x)/(3)` persons can complete the same work in
Correct Answer - `(Y)/(3)`,3Y
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In a survery, it was found that `21` persons liked product `A`, `26` liked product `B` and `29` liked product `C`. If `14` persons liked products `A`
Correct Answer - `(i) 12 (ii) 6`
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Group — Valency I group — i) +2 ,II group — ii) -1
B) a → iii, b → i, c → iv, d → ii
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If an element X belongs to II group and another element Y belongs to VII group then the compound formed between these elements has fomula :
Correct option is C) X Y2
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Universal donors are A) ‘A’ group B) ‘B’ group
D) ‘O’ group
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Universal recipients are A) ‘A’ group B) ‘B’ group
C) ‘AB’ group
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Match the following. Group – A 1) ‘O’ group 2) AB’ group
Group – A Group – B 1) ‘O’ group D) Universal donors 2) AB’ group A) Universal recipients 3) Myeline sheath B) Axon 4) Land Steiner E) Blood groups 5) Granulocytes C) Eosinophils
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People with …………….. are universal blood recipients. A) Blood group ‘A’
D) Blood group ‘AB’
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Which of the following blood group is universal recipient ? A) Blood group – A
B) Blood group – AB
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State the trends in the following properties of group 1 and group 2 elements down a group.
Sr. no. Property Down a group i Atomic radii Increases ii Ionic radii Increases iii Ionization enthalpy Decreases iv Electronegativity Decreases v Standard reduction potential Decreases
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