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Q:

Which type of bond is found in sodium bromide?

A) Ionic B) Covalent
C) Polar covalent D) None of the above
 
Answer & Explanation Answer: A) Ionic

Explanation:
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Q:

Which energy source generates radioactive waste?

A) Nuclear power B) Thermal power
C) Hydel power D) All of the above
 
Answer & Explanation Answer: A) Nuclear power

Explanation:

which_energy_source_generates_radioactive_waste1543400097.jpg image

Nuclear power energy source generates radioactive waste.

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Q:

You cannot link excel worksheet data to a word document

A) With a hyperlink B) With the copy and paste buttons on the standard toolbar
C) With the right drag method D) With the copy and paste special commands
 
Answer & Explanation Answer: B) With the copy and paste buttons on the standard toolbar

Explanation:

You cannot link excel worksheet data to a word document With the copy and paste buttons on the standard toolbar.

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Q:

The Longest Driverless Metro in the world is________

Answer

The Dhubai Metro(UAE) consists of two driverless lines(Red and Green) that totalled 74.694 km (46.41 miles) when the Greenline was officially opened on 9 September 2011.

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Subject: General Awareness

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Q:

Who wrote the book "Ignited Minds"?

A) Vikram Seth B) APJ Abdul Kalam
C) Arundhati Roy D) Manmohan Singh
 
Answer & Explanation Answer: B) APJ Abdul Kalam

Explanation:
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Q:

The strength of an electromagnet can be increased by

A) increasing the length of the coiled wire B) increasing current supply
C) increasing the number of turns D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:

The strength of an electromagnet can be increased by increasing the cross-sectional area, increasing the number of turns, increasing current supply, increasing the length of the coiled wire.

 

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Q:

The mass of a mole of NaCl is the

A) 58.44 gm/mol B) 57.25 gm/mol
C) 56.31 gm/mol D) 59.14 gm/mol
 
Answer & Explanation Answer: A) 58.44 gm/mol

Explanation:

To get the mass of a mole of NaCl, we need to add the molar atomic weights of the individual elements i.e, Na and Cl

Atomic weights of Na = 22.99 gm/mol  Cl = 35.45 gm/mol

 

Now, mass of a mole of NaCl = 22.99 + 35.45 = 58.44 gm/mol.

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Q:

Which equation represents a neutralization reaction?

A) 2Al(OH)3(s) ---> Al2O3(s) + 3H2O(l) B) H2SO4(aq) + 2NaOH(aq) ---> Na2SO4(aq) + 2H2O(l)
C) 2H2(g) + O2(g) ---> 2H2O(l) D) H2CO3(aq) ---> CO2(g) + H2O(l)
 
Answer & Explanation Answer: B) H2SO4(aq) + 2NaOH(aq) ---> Na2SO4(aq) + 2H2O(l)

Explanation:

Here in the option B) H2SO4 - Sulfuric acid is reacting with sodium hydroxide (NaOH), a base to produce a salt (Sodium Sulfate), and water (H2O). This is characteristic of of acid-base neutralization reactions.

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