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1
Q:

In modern periodic table while going from top to bottom in a group ______.

 

A) size of an atom increases B) size of an atom decreases
C) ionisation energy of an atom increases D)  size and ionisation energy of an atom increases

Answer:   D)  size and ionisation energy of an atom increases



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Subject: Chemistry
Exam Prep: Bank Exams
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In which of the following MgCl2 is soluble?

A) Petrol B) Acetone
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Answer & Explanation Answer: D) Water

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Which of the following elements has the electronic configuration 2, 8, 3?

A) Magnesium B) Sodium
C) Aluminium D) Argon
 
Answer & Explanation Answer: C) Aluminium

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What is the natural source of Oxalic acid?

A) Tomato B) Sour milk
C) Ant sting D) Tamarind
 
Answer & Explanation Answer: A) Tomato

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Q:

Alkali metals can

A) be highly unstable at room temperature B) vaporize at room temperature
C) easily gain electrons D) easily lose electrons
 
Answer & Explanation Answer: D) easily lose electrons

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Which among the following is white phosphorus?

A) P1 B) P6
C) P4 D) P5
 
Answer & Explanation Answer: C) P4

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Q:

Which of the following statement(s) is/are CORRECT?

A) Oxides of non-metals are basic B) Oxides of non-metals are acidic
C) Oxides of metals are acidic D) All options are correct
 
Answer & Explanation Answer: B) Oxides of non-metals are acidic

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1 1952
Q:

Vinegar is __________ .

A) diluted acetic acid B) glacial acetic acid
C) glacial formic acid D) diluted formic acid
 
Answer & Explanation Answer: A) diluted acetic acid

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Q:

Which of the following is usually not an air­pollutant?

A) Hydrocarbons B) Sulphur dioxide
C) Carbon dioxide D) Nitrous oxide
 
Answer & Explanation Answer: D) Nitrous oxide

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