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Q:

The Hardest substance available on Earth is

A) Diamond	B) Wurtzite
C) Platinum	D) Gold

Answer & Explanation Answer: A) Diamond

Explanation:

Diamond is the hardest substance available on Earth.

The_Hardest_substance_available_on_Earth_is1558506581.png image

Diamond is the hardest substance available on Earth due to the giant molecular structure of diamond in which each carbon atom is covalently bonded to four other carbon atoms. A covalent bond is very strong and requires a large amount of energy to break itself, and diamond has many covalent bonds.

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Q:

What are the Multiples of 4?

Answer

The Multiples of 4 are 4, 8, 12, 16, 20, 24, 28, 32, 36, 40 upto 40. Mutiples of 4 means which can be divided by 4 leaving remainder '0'.

Common Multiples of 4 & 6 are 12, 24, 36, 48, 60 upto 60.

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Subject: Numbers Exam Prep: AIEEE , Bank Exams , CAT , GATE
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Q:

How many Nucleotides make up a Codon?

A) 3	B) 4
C) 5	D) 6

Answer & Explanation Answer: A) 3

Explanation:

3 Nucleotides make up a Codon.

The nucleotide triplet that encodes an amino acid is called a codon.

Each group of three nucleotides encodes one amino acid.

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Filed Under: Biology
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Q:

What has Hands But cannot Clap?

A) Toy	B) Clock
C) Bag	D) Shirt

Answer & Explanation Answer: B) Clock

Explanation:

What has Hands But cannot Clap is a Clock or a Watch.

A Clock technically has 3 hands.

1 Hour Hand Which tells Hours

1 Minute Hand Which tells Minutes

1 Second Hand Which tells Seconds.

But cannot clap with these hands.

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Filed Under: Logic Puzzles
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Q:

Tetraethyl lead is used as

A) Fire extinguisher	B) Gasoline additive
C) Mosquito repellent	D) Pain killer

Answer & Explanation Answer: B) Gasoline additive

Explanation:

Tetraethyl lead is a highly toxic compound used as a gasoline additive.

Tetraethyl lead abbreviated as TEL, is an organo lead compound with the formula (CH₃CH₂)₄Pb. It is a petro-fuel additive which in turn caused increased vehicle performance. This is also used as an antiknock agent in gasoline and jet fuels. Tetraethyl lead is absorbed rapidly by the skin, the lungs, and the gastrointestinal tract. It is converted to triethyl lead, which might be responsible for its toxicity.

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Filed Under: Chemistry
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Q:

The Biggest cause of Foodborne Illness is

A) Poor Hygiene	B) Toothpick
C) Employee snacking	D) Virus

Answer & Explanation Answer: A) Poor Hygiene

Explanation:

The Biggest cause of Foodborne Illness is Poor Personal Hygiene.

Foodborne Illness is caused by consuming contaminated foods or beverages. Many different disease-causing microbes or pathogens can contaminate foods, so there are many different types of foodborne illnesses.

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Filed Under: General Science
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Q:

Find the missing number in the series

1, 6, ?, 15, 45, 66, 91

A) 24	B) 28
C) 32	D) 26

Answer & Explanation Answer: B) 28

Explanation:

Here the given series 1, 6, ?, 15, 45, 66, 91 follows a

Pattern in the series is, +5, +9, +13,...,.. +21, +25

So +4 is getting increased at every term addition.

Missing Number in the series will be 15+(9+4) = 15 + 13 = 28.

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Filed Under: Odd Man Out
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Q:

Simplify $4 \frac{1}{3} + 2 \frac{1}{5} + 4 \frac{1}{4} = ?$

A) 10 47/60	B) 11 45/73
C) 11 47/36	D) 10 35/48

Answer & Explanation Answer: A) 10 47/60

Explanation:

The given equation is in Mixed fraction.

Now to solve this type of fractions,

$4 \frac{1}{3} + 2 \frac{1}{5} + 4 \frac{1}{4} = ? ? = (4 + 2 + 4) + (\frac{1}{3} + \frac{1}{5} + \frac{1}{4}) ? = 10 + \frac{47}{60} ? = 10 \frac{47}{60}$

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Filed Under: Simplification
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