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Q:

"It shall be the duty of every citizen of india to protect and improve the natural environment."This Statement refers to which of the following Articles of the Constitution of India?

A) Article 50-A B) Article 50-B
C) Article 51-A D) Article 51-B
 
Answer & Explanation Answer: C) Article 51-A

Explanation:
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Q:

Yeast used in making bread is a

A) Fungus B) Bacteria
C) Seed D) Plant
 
Answer & Explanation Answer: A) Fungus

Explanation:

Yeast used in making bread is a Fungus.

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Q:

The command to eliminate a table from a database is

A) REMOVE TABLE CUSTOMER; B) UPDATE TABLE CUSTOMER;
C) DELETE TABLE CUSTOMER; D) DROP TABLE CUSTOMER;
 
Answer & Explanation Answer: D) DROP TABLE CUSTOMER;

Explanation:

The SQL DROP TABLE statement is used to remove a table definition and all data, indexes,...

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Q:

How many member countries did the UNO have on its formation in 1945 ?

A) 45 B) 51
C) 48 D) 54
 
Answer & Explanation Answer: B) 51

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Q:

 Legacy data is which of the following?

A) Data contained in a newly-installed system B) Data rejected during the installation of a new system
C) Data contained in a file system D) Data contained by a system used prior to the installation of a new system
 
Answer & Explanation Answer: D) Data contained by a system used prior to the installation of a new system

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Q:

The Wettest place in the world is Cherrapunji (Assam). The Hottest place is

A) Azizia (Libya) B) Ramagundam (India)
C) Stwart Island (New Zealand) D) Kandy (Sri lanka)
 
Answer & Explanation Answer: A) Azizia (Libya)

Explanation:

Temperature as high as 58.7oC has been recorded at this place

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Q:

There are two numbers such that the sum of twice the first number and thrice the second number is 300 and the sum of thrice the first number and twice the second number is 265. Which is the largest number ?

A) 24 B) 39
C) 85 D) 74
 
Answer & Explanation Answer: D) 74

Explanation:
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Q:

Which reaction occurs spontaneously?

A) Cl2(g) + 2NaF(aq)--> F2(g) + 2NaCl(aq) B) I2(s) + 2NaF(aq)--> F2(g) + 2NaI(aq)
C) Cl2(g) + 2NaBr(aq)-->Br2(l) + 2NaCl(aq) D) I2(s) + 2NaBr(aq)--> Br2(l) + 2NaI(aq)
 
Answer & Explanation Answer: C) Cl2(g) + 2NaBr(aq)-->Br2(l) + 2NaCl(aq)

Explanation:

In this chemical reaction chlorine change oxidation number from 0 to -1 (reduction) and bromine change oxidation number from -1 to 0 (oxidation).

Chlorine is stronger oxidation reagent than bromine.

In VIIA or group 17 (halogen elements) there are six elements: fluorine (F), chlorine (Cl), bromine (Br), iodine (I), astatine (At) and tennessin(Ts).

They have high electronegativity because they have seven valence electrons in their outermost energy level, so they can gain an electron to have the octet rule.  

Going down in the group, element are weaker oxidazing reagent and less reactive.

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