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Q:

Mg+O2=MgO

Balance the above Chemical equation?

A) 2Mg + O2 ----> 2MgO B) 2Mg + O ----> 2MgO
C) 2Mg + O ----> MgO2 D) 2Mg + O2 ----> MgO2
 
Answer & Explanation Answer: A) 2Mg + O2 ----> 2MgO

Explanation:

Given Equation is 

Mg + O2 → MgO

Balancing the Chemical Equation is nothing but Conservation of Matter. As Matter is Neither created nor Destroyed, it must be conserved.

Here we have 1 Mg and 2 O on the left side and 1 Mg and 1 O on the right side

To balance that, add 1 Mg on the left side so that it becomes 2 Mg and 2 O on the left side

i.e,

2 Mg + O2 → 2 MgO

Here it has 2 Mg & 2 O on the left side and 2 Mg and 2 O on the right side and the Chemical equation is Balanced.

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Filed Under: Chemistry
Exam Prep: GATE , AIEEE
Job Role: Analyst

32 181960
Q:

Select the synonym of

to alight

A) to escalate B) to clamber
C) to disembark D) to astride
 
Answer & Explanation Answer: C) to disembark

Explanation:
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Filed Under: English
Exam Prep: Bank Exams

1 181938
Q:

Select the antonym of

stupor

A) swoon B) consciousness
C) trance D) apathy
 
Answer & Explanation Answer: B) consciousness

Explanation:
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Filed Under: English
Exam Prep: Bank Exams

0 181912
Q:

3125  256  ?  4  1

Which number replaces the "?" in the question?

A) 27 B) 128
C) 32 D) 64
 
Answer & Explanation Answer: A) 27

Explanation:

In the given series numbers are arranged following the rule,

55,44, 33, 22, 11

 Therefore, the missing number is 27.

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Filed Under: Odd Man Out
Exam Prep: CAT
Job Role: Bank PO

18 180863
Q:

Which among the following comes under Concurrent List of Indian Constitution?


I. Marriage and Divorce


II. Electricity


III. Labour Welfare

 

A) Only I B) Only II
C) Both I and II D) All I, II and III
 
Answer & Explanation Answer: D) All I, II and III

Explanation:
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Filed Under: Indian Politics
Exam Prep: Bank Exams

18 180677
Q:

Select the antonym of

coalesce

A) separate B) adhere
C) cleave D) amalgamate
 
Answer & Explanation Answer: A) separate

Explanation:
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Filed Under: English
Exam Prep: Bank Exams , CAT

6 180605
Q:

Sort each description by the type of RNA it describes?

a) contains an anticodon
b) specifies the amino acid squence for a protein
c) contains exons
d) has amino acids covalently attached
e) is a component of ribosomes
f) is the most abundant form of RNA

A) a, b, d - tRNA, c - mRNA, e, f - rRNA B) a, c - tRNA, b, d - mRNA, e, f - rRNA
C) a, e, f - rRNA, b - mRNA, c, d - tRNA D) None of the above
 
Answer & Explanation Answer: A) a, b, d - tRNA, c - mRNA, e, f - rRNA

Explanation:

Option A) 

a, b, d - tRNA, c - mRNA, e, f - rRNA

 

Is the given sorted description that describes the RNA type.

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Filed Under: Biology
Exam Prep: AIEEE , Bank Exams , GATE
Job Role: Analyst , Bank Clerk , Bank PO

50 180180
Q:

Which can not be formed using the letters of the given word ? 

CONCEPTUALIZATION 

A) Actual B) Petrol
C) Total D) Petal
 
Answer & Explanation Answer: B) Petrol

Explanation:
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Filed Under: Alphabet Test
Exam Prep: AIEEE , Bank Exams , CAT , GATE , GRE , TOEFL
Job Role: Bank Clerk , Bank PO

37 180005