Chemistry

The collision theory proposes that?

A. reactants collide more frequently to bring about reduction in the reaction rate B. all collisions of reactants are effective…

6 years ago

When concentrated H2SO4 is added to NaCI(s), the gas evolved?

A. bleaches damp blue litmus paper B. forms a white precipitate with AgNO3(aq) C. forms a white precipitate with BaCI2(aq)…

6 years ago

In a fixed volume of a gas, an increase in temperature results in an increase in pressure due to an increase in the?

A. number of the collisions between the gas molecules and the walls of the container B. kinetic energy of the…

6 years ago

Which of the following compounds with the corresponding masses contain the highest percentage of nitrogen? [N = 14]

A. NH3 = 17 B. NH4CI = 53.5 C. NH4NO3 = 80 D. (NH3)2SO4 = 132 Correct Answer: Option A…

6 years ago

The force of attraction between covalent molecules is?

A. dative bonding B. hydrogen bonding C. ionic force D. van der Waals forces Correct Answer: Option B B. hydrogen…

6 years ago

Water molecules are held together by?

A. covalent bond B. hydrogen bond C. ionic forces D. van der Waals forces Correct Answer: Option B B. hydrogen…

6 years ago

Arrange the following elements in order of increasing electron affinity: Br2 CI2 I2 F2

A. I2 CI2 Br2 F2 B. I2 Br2 Cl2 F2 C. CI2 I2 Br2 F2 D. Br2 CI2 I2 F2…

6 years ago

Elements in the same group of the periodic table have?

A. the same number of valence electrons B. the same number of electron shells C. different chemical behaviour D. the…

6 years ago