Q:

What is the systematic name of PbO?

A) Plumbic oxide	B) Lead oxide
C) Lead(II) oxide	D) All of the above

Answer & Explanation Answer: C) Lead(II) oxide

Explanation:

The systematic name for a chemical is the unique name given to it by the International Union of Pure Applied Chemistry (IUPAC). The IUPAC name can differ from a chemical compound's general name.

PbO is an ionic compound since it consists of a Lead as metal and Oxygen as nonmetal. The systematic name for PbO is Lead (II) oxide. Here we need to put the (II) since lead has more than one combining capacity.

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Q:

Cellulose is a

A) Mineral	B) Protein
C) Fat	D) Carbohydrate

Answer & Explanation Answer: D) Carbohydrate

Explanation:

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Filed Under: Biology

15 5235

Q:

Any letter, number, or symbol found on the keyboard that you can type into the computer...........

A) Output	B) Type
C) Character	D) Print

Answer & Explanation Answer: C) Character

Explanation:

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Q:

Solve the following equations and find the value of abc?

A) 3	B) 6
C) 9	D) 12

Answer & Explanation Answer: B) 6

Explanation:

From the given equations,

$(a + b + c)^{2} = a^{2} + b^{2} + c^{2} + 2 (ab + bc + ca)$
${(6)}^{2} = 14 + 2 (ab + bc + ca)$
36 - 14 = 2(ab + bc + ca)
22/2 = ab + bc + ca
ab + bc + ca = 11

$a^{3} + b^{3} + c^{3} - 3 abc = (a + b + c) (a^{2} + b^{2} + c^{2} - ab - bc - ca)$
= (6) (14 - 11)
=(6)(3)
=18

Since, $a^{3} + b^{3} + c^{3} - 3 abc = 18$

36 - 3abc = 18

-3abc = 18 - 36

-3abc = -18

abc = 6.

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Q:

What Does BIOS Stand For

A) Backup Input Output System	B) Battery Integrated Operating Setup
C) Basic Input Output System	D) Better Integrated Operating System

Answer & Explanation Answer: C) Basic Input Output System

Explanation:

BIOS in computers stands for Basic Input Output System.

BIOS is a set of computer instructions in firmware which control input and output operations.

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25 5229

Q:

Generally covalently bonded molecules ______.

I. have high boiling and melting point as compare to ionically bonded molecules

II. poor conductors of electricity

III. have weak intermolecular force

A) Only I and II	B) Only I and III
C) Only II and III	D) All I, II and III

Answer & Explanation Answer: C) Only II and III

Explanation:

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Q:

Which is the first Indian company to be listed on NASDAQ ?

A) Reliance	B) TCS
C) HCL	D) Infosys

Answer & Explanation Answer: D) Infosys

Explanation:

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Q:

Which of the following solutions is alkaline?

A) H+ <1 × 10-7 Mol/l	B) H+ = 1 × 10-4 Mol/l
C) H+ = 1 × 10-7 Mol/l	D) H+ > 1 × 10-7 Mol/l

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