Question

In modern periodic table the d-block elements are in: (a) A-group (b) Left side (c) B-group (d) Bottom Which is the longest period of periodic table: (a) 4 period (b) 5th period (c) 6 period (d) 7 period Which elements are known as outer transition elements: (a) S and P block elements (b) Only d-block elements (c) Only f-block elements (d) N.O.T Third period of modern periodic table contains: (a) 18 elements (b) 2 elements (c) 32 elements (d) 8 elements The elements of VIII A group are called: (a) Noble bases (b) Inert gases (c) Zero group elements (d) A.0.7 Which group elements from polymeric hydrides:- (a) IA (b) II A (c) III A (d) VII A The product of the reaction NaALH. + 4H20 ? is: (a) NaOH + 3AIOH (b) NaOH+ Al(OH)3 (c) Na ALO2+ H, (d) None of these In hydrides the hydrogen atom possesses: (a) Positive charge (b) Negative charge (c) No any charge (d) N.O.T The amount of heat released when one mole of ions of alkali metlals is dissolved in w called: (a) Heat of hydration (b) Heat of formation (c) Heat of solution (d) All of them​

Answer 1

Option (c) is the answer

Mark me as brainlist

Answer 2

Answer:

(c)D-Block elements are present in B group.

(d)LONGEST PERIOD: 7TH PERIOD

(b)D-Block elements are called Transition elements.Whereas F Block elements are called Inner Transition elements

d) 8 elements

d) all

(b) IIA

(b) NaOH + Al(OH) 3

(b) -ve charge

(a) Heat of Hydration

Explanation:

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