General Science Chemistry MCQs

Chemistry Objective (Multiple Choice) General Knowledge Questions & Answers for SSC-CGL, UPPSC, UPSC, NDA, CDS and UPSC Civil Services Prelims Examination. These questions are part of GKToday’s 35000+ MCQs Bank Course in GKToday Android App

21. Propanol belongs to which of the following group?

[A] Alcohol
[B] Aldehyde
[C] Carboxylic acid
[D] Ketone

Show Answer

22. Which of the following is the product of the reaction between Ethanoic acid and Sodium hydrogen carbonate?

[A] Ethyne
[B] Sodium acetate
[C] Ethanol
[D] Sodium hydroxide

Show Answer

23. Choose the correct statement about Oxalic acid:

[A] It is weaker than acetic acid
[B] Its condensed chemical formula is HOOCCOOH
[C] Both a and b
[D] None

Show Answer

24. Which of the following is produced when wood is burnt in a limited supply of oxygen?

[A] Charcoal
[B] Water gas
[C] Petroleum
[D] Paraffin

Show Answer

25. Which of the following metals can easily be cut with a knife?

[A] Sodium
[B] Manganese
[C] Zinc
[D] Tin

Show Answer

26. Which of these non-metals is commonly used as a general anesthetic?

[A] Helium
[B] Tellurium
[C] Xenon
[D] Fluorine

Show Answer

27. Which among the following metals is the hardest metal?

[A] Platinum
[B] Gold
[C] Iron
[D] Tungsten

Show Answer

28. When a bond is formed between two atoms, the energy of the system will:

[A] increase
[B] decrease
[C] remain the same
[D] may increase or decrease

Show Answer

29. Which of the following is an example of colloidal solution of liquid in solid?

[A] Mud
[B] Milk
[C] Cheese
[D] Rubber

Show Answer

30. Mass number is always equal to:

[A] number of protons
[B] number of neutrons
[C] sum of number of protons and number of electrons
[D] sum of number of protons and number of neutrons

Show Answer

Advertisement