Chemistry

Which of the following transition metals is not attracted to external magnetic field?

A. Cu B. Fe C. Ti D. Zn Correct Answer: Option A A. Cu

6 years ago

Which of the following processes is used in food preservation in an industry?

A. Carbon dating B. Irradiation of gamma rays C. Nuclear fission D. Nuclear fusion Correct Answer: Option B B. Irradiation…

6 years ago

Which of the following arrangements is in decreasing order of atomic radius?

A. Li>Be>C> B. Li>B>Be>C C. Li>Be>B>C D. C>B>Be>Li Correct Answer: Option C C. Li>Be>B>C

6 years ago

The two elements 11X and 19Y are in the same group because they have the same?

A. valence electrons B. ionization energy C. number of shell D. atomic size Correct Answer: Option A A. valence electrons

6 years ago

Hydrogen bonds are formed between molecules containing a hydrogen atom bonded to a?

A. strongly electronegative atom B. non-polar species C. diatomic element D. complex ion Correct Answer: Option A A. strongly electronegative…

6 years ago

The crystal layers in graphite are held together by?

A. covalent bond B. electrostatic forces C. ionic bond D. van der Waal's forces Correct Answer: Option A A. covalent…

6 years ago

The shape of CH4 is?

A. linear B. planar C. pyramidal D. tetrahedral Correct Answer: Option D D. tetrahedral

6 years ago

Consider the following equilibrium system: 2SO2(g) + O2(g) ⇌ 2SO3(g). The addition of more O2(g) to the system will shift the equilibrium position to the?

2SO2(g) + O2(g) ⇌ 2SO3(g) A. Right leading to the production of more SO3(g) B. Right leading to the production…

6 years ago

The correct balanced equation for the reaction between aluminium metal and hot concentrated tetraoxosulphate(VI)acid is?

A. 2AI(s) + 6H2SO4(1) → AI2(SO4)3(aq) + 6H2O(1) + 3SO2(g) B. 2AI(s) + 3H2SO4(1) → AI2(SO4)3(aq) + 6H2O(1) + 3SO2(g)…

6 years ago

Which of the following gases is monoatomic?

A. Argon B. Chlorine C. Nitrogen D. Oxygen Correct Answer: Option A A. Argon

6 years ago