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Q:

The particle with 13 protons and 10 electrons is

A) Al -atom B) Al3+ ion
C) nitrogen isotope D) None of these
 
Answer & Explanation Answer: B) Al3+ ion

Explanation:
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Filed Under: Chemistry

Q:

The nitrogen atom has 7 protons and 7 electrons,The nitride ion will have

A) 10 protons and 7 electrons B) 7 protons and 10 electrons
C) 4 protons and 7 electrons D) 4 protons and 10 electrons
 
Answer & Explanation Answer: B) 7 protons and 10 electrons

Explanation:
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Q:

Rutherford's alpha-scattering experiment related to the size of the

A) nucleus B) atom
C) electron D) neutron
 
Answer & Explanation Answer: A) nucleus

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Q:

What is the element present in urea

A) C,H,O B) C,N,O
C) C,N,H D) C,O,N,H
 
Answer & Explanation Answer: D) C,O,N,H

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Q:

How many moles are there in 140g of Si (atomic mass of silicon is 28)

A) 5 B) 10
C) 28 D) 140
 
Answer & Explanation Answer: A) 5

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Q:

There is a family of six persons A. B. C, D. E and F. They are Lawyer, Doctor, Teacher, Salesman, Engineer and Accountant There are two married couples in the family. D, the Salesman is married to the Lady Teacher. The Doctor is married to the Lawyer. F, the Accountant is the son of B and brother of E. C, the Lawyer is the daughter-in-law of A. E is the unmarried Engineer. A is the grandmother of F. How is D related to F? 

A) Grandfather B) Father
C) Uncle D) Brother
 
Answer & Explanation Answer: A) Grandfather

Explanation:

 C is the daughter-in-law of A who is the grandmother of' F means C is the mother of F But F is the son of B. 

So. B is C's husband. But C, the lawyer. is married to the Doctor So. B is the Doctor. F, the Accountant, will be the non of B and C, E is the unmarried Engineer 

So, the other mamed couple can be that of grandmother of Fie A and 0 But D. the Salesman, is married to the Lady Teacher. 

So. D, the Salesman, is the grandfather of F, father of B and the husband of A, the Lady Teacher. 

D is the grandfather of F. 

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Filed Under: Blood Relations

Q:

A family consists of six members P, Q, R, X, Y and Z. Q is the son of R but R is not mother of Q. P and R are a married couple. Y is the brother of R. X is the daughter of P. Z is the brother of P. Who is the brother-in-law of R ? 

A) P B) Z
C) Y D) X
 
Answer & Explanation Answer: B) Z

Explanation:

Q is the son of R but R is not the mother. So, R is the Father of Q. P is married to R 

So, P is the wife of R and the mother of Q, X is the daughter of P and hence of R and so she is the Sister of Q, Y is the brother of R and Z is the brother of P. 

It is the husband of P and Z 13 the brother of P So, Z Is the brother-In-law of R 

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Q:

In a family, there are six members A, B, C, D, E and F. 

A and B are a married couple, A being the male member. D is the only son of C, who is the brother of A. E is the sister of D. B is the daughter-in-law of F, whose husband has died. How is E related to C ? 

A) Sister B) Daughter
C) Cousin D) Mother
 
Answer & Explanation Answer: B) Daughter

Explanation:

A is a male and married to B. So, A is the husband and B is the wife. C is the brother of A. D is the son of C. E. who is the sister of D will be the daughter of C. B is the daughter-in-law of F whose husband has died means F is the mother of A. 

 

Clearly. E is the daughter of C. 

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Filed Under: Blood Relations