Chemistry 1488 MCQs [All-Courses]

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In solvent extraction ether is used to separate products of organic synthesis from________________?

A water

B iodine

C hydrochloric acid

D gases

Review Detailed Answer

Correct Answer: water

When an active metal like Al comes in contact with less active element like Cu then it produces__________________?

A dry cell

B galvanic cell

C electrolytic cell

D A and B

Review Detailed Answer

Correct Answer: galvanic cell

The use of CaCl2 and PCl5 in the process of crystallization is as a____________________?

A oxidizing agent

B reducing agent

C drying agent

D colouring agent

Review Detailed Answer

Correct Answer: drying agent

Which is sold as fertilizer ___________________?

A CaSiO3

B Na2SiO3

C Ca3(PO4)2

D MnSiO3

Review Detailed Answer

Correct Answer: Ca3(PO4)2

Without suction pump filtration is __________________?

A Fast process

B Slow process

C Rapid process

D All are possible

Review Detailed Answer

Correct Answer: Slow process

With impurities like P and S the open hearth furnace is lined with ?

A SiO2

B Fe2O3

C FeO

D CaO MgO

Review Detailed Answer

Correct Answer: CaO MgO

Direct conversion of solids into vapours is called ___________________?

A Solvent extraction

B sublimation

C crystallization

D vaporization

Review Detailed Answer

Correct Answer: sublimation

In pig iron the concentration of C-atom is ___________________?

A 0.12 — 0.25%

B 2.5 — 4.5%

C 2.0 — 4.0%

D 0.25 — 2.5%

Review Detailed Answer

Correct Answer: 2.5 — 4.5%

In CCI4 I2 shows________________?

A Red colour

B Purple colour

C Blue colour

D Yellow colour

Review Detailed Answer

Correct Answer: Purple colour

Geometry of the complex compounds usually depends upon __________________?

A type of ligands

B types of hybridization in the elements of ligands

C hybridization of central metal

D All of above

Review Detailed Answer

Correct Answer: hybridization of central metal

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Chemistry 1488 MCQs [All-Courses]

All Topics 1488

All Topics 1488

In solvent extraction ether is used to separate products of organic synthesis from________________?

When an active metal like Al comes in contact with less active element like Cu then it produces__________________?

The use of CaCl2 and PCl5 in the process of crystallization is as a____________________?

Which is sold as fertilizer ___________________?

Without suction pump filtration is __________________?

With impurities like P and S the open hearth furnace is lined with ?

Direct conversion of solids into vapours is called ___________________?

In pig iron the concentration of C-atom is ___________________?

In CCI4 I2 shows________________?

Geometry of the complex compounds usually depends upon __________________?