On what basis Scandium is considered as transition metal, but Zinc is not considered as transition metal?

Match List - I with List - II

List - I (Cell Type)	List - II (Characteristic/Reaction)
A. Fuel Cell	I. Rechargeable
B. Mercury Cell	II. Reaction at anode, \(\text{Zn} \rightarrow \text{Zn}^{2+} + 2\text{e}^{-}\)
C. Leclanche Cell	III. Cell reaction \(2\text{H}_2 + \text{O}_2 \rightarrow 2\text{H}_2\text{O}\)
D. Ni-Cd Cell	IV. Gives steady potential

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In the following statements the in correct statement is :

Given below are four statements with reference to a catalyst. Choose the incorrect statement(s)
(A) A catalyst lowers the potential energy barrier, thus decreasing the activation energy.
(B) A catalyst lowers the Gibbs energy \((\Delta G)\) of the reaction.
(C) A small amount of catalyst converts a large amount of reactants into products.
(D) A catalyst can catalyze non-spontaneous reactions also.
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The correct increasing order of basic strength of amine is :
(A) \(\text{C}_6\text{H}_5\text{NH}_2 < \text{NH}_3 < \text{C}_6\text{H}_5\text{CH}_2\text{NH}_2 < \text{C}_2\text{H}_5\text{NH}_2 < (\text{C}_2\text{H}_5)_2\text{NH}\)
(B) \(\text{NH}_3 < \text{C}_6\text{H}_5\text{NH}_2 < \text{C}_6\text{H}_5\text{CH}_2\text{NH}_2 < \text{C}_2\text{H}_5\text{NH}_2 < (\text{C}_2\text{H}_5)_2\text{NH}\)
(C) \(\text{C}_6\text{H}_5\text{CH}_2\text{NH}_2 < \text{C}_6\text{H}_5\text{NH}_2 < \text{NH}_3 < \text{C}_2\text{H}_5\text{NH}_2 < (\text{C}_2\text{H}_5)_2\text{NH}\)
(D) \(\text{C}_2\text{H}_5\text{NH}_2 < (\text{C}_2\text{H}_5)_2\text{NH} < \text{C}_6\text{H}_5\text{NH}_2 < \text{NH}_3\)
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Reducing sugars among the following are :
(A) Maltose
(B) Sucrose
(C) Lactose
(D) Fructose
(E) Cellulose
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Which phenomenon occurs when an electric field is applied to a colloidal solution and electrophoresis is prevented?
(A) \quad Reverse osmosis takes place
(B) \quad Electroosmosis takes place
(C) \quad Dispersion medium begins to move in an electric field
(D) \quad Dispersion medium becomes stationary
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Ferric oxide in blast furnace's upper half is mainly reduced by :

Let L be the set of all lines in a plane and R be the relation in L defined as \(R = \{(L_1, L_2) : L_1 \text{ is perpendicular to } L_2\}\) then R is:A. Reflexive
B. Symmetric
C. neither reflexive nor transitive
D. Transitive
E. neither reflexive nor symmetric
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Which of the following statement is correct for a potentiometer ?

The kinetic energy of an electron in the ground state of hydrogen atom is \(1 3 . 6 ~ e V\). The potential energy (P.E) and total energy ( E ) of electron in this state is :

Which of the following is known as Hinsberg's reagent?

Which one of the following is not true for a molecule that can act as a genetic material?