Which of the following group is NOT Dobereiner Tri | Chemistry Questions & Answers

Q:

What is the base of the Octal Numeral System?

A) 8	B) 16
C) 32	D) 64

Answer & Explanation Answer: A) 8

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Q:

The (O-H) bond in ${CH}_{3} OH$ is _____.

A) polar covalent	B) ionic
C) non polar covalent	D) cationic

Answer & Explanation Answer: A) polar covalent

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Q:

Adding which substance gives blue colour to glass?

A) Manganese oxide	B) Cobalt oxide
C) Chromium oxide	D) Iron oxide

Answer & Explanation Answer: B) Cobalt oxide

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Q:

The conversion of hard water into soft water by boiling or adding calcium hydroxide is called _______.

A) Baker's process	B) Temp's process
C) Clarke's process	D) Lake's process

Answer & Explanation Answer: C) Clarke's process

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Q:

Name the acid present in lemon.

A) Phosphoric acid	B) Carbonic acid
C) Citric acid	D) Malic acid

Answer & Explanation Answer: C) Citric acid

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Q:

The poisonous gas accidentally released in Bhopal Gas Tragedy is

A) Methane	B) Nitrous Oxide
C) Methyl Isocyanate	D) Cyanogen

Answer & Explanation Answer: C) Methyl Isocyanate

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Q:

Which among the following compounds has the strongest hydrogen bond?

A) HI	B) HCl
C) HF	D) HBr

Answer & Explanation Answer: C) HF

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Q:

Which of the following elements has the lowest melting point?

A) Platinum	B) Carbon
C) Cobalt	D) Krypton

A) Li, Na, K	B) N, P Au
C) Cl, Br, I	D) Ca, Sr, Ba

Which of the following group is NOT Dobereiner Triads?

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