Tag: measurement and data processing and analysis

Quizzes (2) Questions (64)

Questions Related to measurement and data processing and analysis

Multiple choice chemistry measurement and data processing and analysis spectroscopic identification of organic compounds materials science introduction superconducting metals and x-ray crystallography

Joining of monomers to form polymers is called as :

  1. polymerization

  2. hydrolysis

  3. condensation

  4. none of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Polymerization is the process of combining many small molecules known as monomers into a covalently bonded chain or network. 


During the polymerization process, some chemical groups may be lost from each monomer. 

The distinct piece of each monomer that is incorporated into the polymer is known as a repeat unit or monomer residue.

Hence the correct option is A.

Multiple choice chemistry measurement and data processing and analysis spectroscopic identification of organic compounds materials science introduction superconducting metals and x-ray crystallography

Analytical chemistry deals with:

  1. experimental study by qualitative means.

  2. experimental studies by quantitative means.

  3. experimental studies both by qualitative and quantitative means.

  4. None of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Analytical chemistry deals with experimental studies both by qualitative and quantitative means. Hence, option C is correct. 

Multiple choice chemistry measurement and data processing and analysis spectroscopic identification of organic compounds materials science introduction superconducting metals and x-ray crystallography

The acidic strength of methoxyphenols are in order

  1. Para > Ortho > Meta > Phenol

  2. Para > Ortho > Phenol > Meta

  3. Meta > Phenol > Ortho > Para

  4. Meta > Phenol > Para > Ortho
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The acidity of methoxyphenols is influenced by the inductive and resonance effects of the methoxy group. The para-isomer is most acidic due to resonance stabilization, followed by ortho (due to proximity), then phenol, and meta is least acidic.

Multiple choice chemistry measurement and data processing and analysis spectroscopic identification of organic compounds materials science introduction superconducting metals and x-ray crystallography

Consider the following reagents
I. ${Br} _{2}$ water  II. Tollen's reagent
III. Fehling's solution which cannot be used to make distinction between an aldose and a ketose?

  1. I, II and III

  2. II and III

  3. I only

  4. II only
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Bromine water reacts with both aldoses and ketoses (though at different rates, it is not a specific test for distinction). Tollen's reagent and Fehling's solution are specific tests for aldehydes, which distinguish aldoses from ketoses.

Multiple choice chemistry measurement and data processing and analysis spectroscopic identification of organic compounds materials science introduction superconducting metals and x-ray crystallography

Analytical chemistry deals with experimental study both by :

  1. qualitative means

  2. quantitative means

  3. Both A and B

  4. None of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Analytical chemistry deals with experimental study both by qualitative and quantitative means.

Multiple choice chemistry measurement and data processing and analysis spectroscopic identification of organic compounds materials science introduction superconducting metals and x-ray crystallography

The correct order of the solubility of the different alcohols in water is

  1. n-propyl alcohol > ethyl alcohol >n-butyl alcohol

  2. Ethyl alcohol>n-butyl alcohol>n-propyl alcohol

  3. n-butyl alcohol>n-propyl alcohol>ethyl alcohol

  4. Ethanol>n-propanol>n-butyl alcohol
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Solubility of alcohols in water decreases as the length of the hydrophobic alkyl chain increases. Therefore, ethanol is most soluble, followed by n-propanol, and n-butyl alcohol is the least soluble.

Multiple choice chemistry measurement and data processing and analysis spectroscopic identification of organic compounds materials science introduction superconducting metals and x-ray crystallography

Which of the following is not a nucleophile :

  1. $CH _3O^-$
  2. $H _2O$
  3. $CH _3-OCH _3$
  4. $CH _3-\underset{H}{\underset{|}{\overset{+}{O}}} - H$
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Nucleophile are electron rich species, can donate their electron SO, $CH _3-\underset{H}{\underset{|}{\overset{+}{O}}} - H$ is not a Nucleophile.

Multiple choice chemistry measurement and data processing and analysis spectroscopic identification of organic compounds materials science introduction superconducting metals and x-ray crystallography

What is Analytical chemistry?

  1. The study of the separation, identification, and quantification of the chemical components of natural and artificial materials.

  2. The study of the chemical composition and structure of substances.

  3. The study of the only separation of the chemical components of natural and artificial materials.

  4. The study of the only identification of the chemical components of natural and artificial materials.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Analytical chemistry is the study of the separation, identification, and quantification of the chemical components of natural and artificial materials.

Hence, option A is correct.