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Last Updated On [03-11-2023]

An atom has 2K, 8L and 5M electrons. Choose the correct statements regarding it.

(i) Trivalent anion of this atom will have 12 protons in its nucleus.

(ii) Trivalent cation of this atom will have six p-electrons in it.

(iii) This atom forms an amphoteric oxide of formula X2 O3.

(iv) One of its allotrope is tetraatomic(X4).

(a)

(i) and (ii)

(b)

(ii) only

(c)

(ii) and (iii)

(d)

(ii) and (iv)


Question ID - 152927 :-

An atom has 2K, 8L and 5M electrons. Choose the correct statements regarding it.

(i) Trivalent anion of this atom will have 12 protons in its nucleus.

(ii) Trivalent cation of this atom will have six p-electrons in it.

(iii) This atom forms an amphoteric oxide of formula X2 O3.

(iv) One of its allotrope is tetraatomic(X4).

(a)

(i) and (ii)

(b)

(ii) only

(c)

(ii) and (iii)

(d)

(ii) and (iv)

1 Answer
5876 Votes
3537

Answer Key : (d) -

(ii) and (iv)



Next Question :

Chlorine (Cl) and Oxygen (O) form four different binary compounds. Analysis gives the following results:

Compound                                                            Mass of O combined with 1.0 g cl

       A                                                                               0.226g

       B                                                                               0.903g

       C                                                                               1.354g

       D                                                                               1. 579g

Compound A has a formula that is some multiple of Cl2O, then which of the following is incorrectly said? 

(a)

Compound B is Cl2O5 (or cl4O10, or cl6O15,­ and so forth).

(b)

Compound C is Cl2O6 (or ClO3 or cl3O9, and so forth).

(c)

Compound D is Cl2 O7(or a multiple there of)

(d)

The above data show the law of multiple proportions holds for these compounds


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