Q:

Which pair of atoms has the highest electronegativity difference?

(Calcium's electronegativity is 1.0

Fluorine's electronegativity is 4.0

Hydrogen's electronegativity is 2.2

Sodium's electronegativity is 0.93)

A) F-F	B) Ca-F
C) H-F	D) Na-F

Answer & Explanation Answer: D) Na-F

Explanation:

F-F = 4 - 4 = 0

Ca-F = 4 - 1 = 3.0

H-F = 4 - 2.2 = 1.8

Na-F = 4 - 0.93 = 3.07

Hence, the highest electronegativity difference is in Na-F.

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Filed Under: Chemistry
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12 61199

Q:

Which of the following reactions are exothermic?

$1) C + O_{2} \to {CO}_{2} 2) 2 Mg + O_{2} \to 2 MgO 3) {CuSO}_{4} + 5 H_{2} O \to {CuSO}_{4} . 5 H_{2} O 4) All the above$

A) 1	B) 2
C) 3	D) 4

Answer & Explanation Answer: D) 4

Explanation:

Here all the given options are Exothermic reactions. Exothermic reactions are those reactions which involves the release of heat.

Generally all the combining reactions are exothermic in nature.

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13 61175

Q:

In which of the following festivals are boat races a special feature?

A) Rongali Bihu	B) Onam
C) Pongal	D) Navratri

Answer & Explanation Answer: B) Onam

Explanation:

In_which_of_the_following_festivals_are_boat_races_a_special_feature1534240624.jpg image

Onam is an annual Hindu festival with origins in the state of Kerala in India. It falls in the Malayalam calendar month of Chingam, which in Gregorian calendar overlaps with August–September. In this festival, boat races are famous.

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Filed Under: Indian Culture
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679 60840

Q:

Which of the following is a Trans- Himalayan river?

A) Ganga	B) Yamuna
C) Indus	D) Ravi

Answer & Explanation Answer: C) Indus

Explanation:

Two sub groups of Himalayan Rivers are Trans Himalayan Rivers and Himalayan Rivers.

Trans Himalayan Rivers :

These rivers originate beyond the Himalayas. They are The Indus, The Sutlej and The Brahmaputra Rivers.

Himalayan Rivers :

These are the rivers originate from Himalayas. They are The Ganga, The Yamuna and their tributaries.

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Filed Under: Indian Geography
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361 60836

Q:

I can Honk without using a Horn.

Who am I?

A) Goose	B) Crane
C) Penguin	D) Humming

Answer & Explanation Answer: A) Goose

Explanation:

Goose can Honk without using a Horn. Geese are waterfowl of the family Anatidae.

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Filed Under: Word Puzzles
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20 60178

Q:

public abstract interface Frobnicate { public void twiddle(String s); }

Which is a correct class?

A) public abstract class Frob implements Frobnicate { public abstract void twiddle(String s) { } }	B) public abstract class Frob implements Frobnicate { }
C) public class Frob extends Frobnicate { public void twiddle(Integer i) { } }	D) public class Frob implements Frobnicate { public void twiddle(Integer i) { } }

Answer & Explanation Answer: B) public abstract class Frob implements Frobnicate { }

Explanation:

B is correct, an abstract class need not implement any or all of an interface’s methods

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Filed Under: Programming

4 59726

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

3 59706

Q:

Rearrange the parts of the sentence in correct order.

Ensuring security

P-harder than hacking into a system

Q-of data, information, and

R-communication is considerably

A) RQP	B) RPQ
C) PRQ	D) QRP

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