Name the gas evolved in each case (formula is not acceptable)
The gas produced by the action of dilute nitric acid on copper.
Select the correct answer from the choices A, B, C and D which is given.
Write only the letter corresponding to the correct answer .
Among the period 2 element the one which has high electron affinity is:
Lithium
Carbon
Fluorine
Fluorine
Match each substance A to E listed below with the appropriate description:
A) Sulphur
B) Silver chloride
C) Hydrogen chloride
D) Copper (II) sulphate
E) Graphite
A non-metal which is good conductor of electricity.
Fill in the blanks with the correct words from the brackets:
Generally ionic compounds exist in (i) …………..(solid/liquid/gas) state. Melting and boiling points of covalent compounds are generally (ii)………… (low /high).
Match each substance A to E listed below with the appropriate description in parts (i) to (v)
A) sulphur (B) silver chloride (C) hydrogen Chloride (D) copper (II) sulphate (E) graphite
A non-metal which reacts with concentrated nitric acid to form its own acid as one of the product.
A) sulphur
Match each substance A to E listed below with the appropriate description in parts (i) to (v).
A) sulphur
B) silver chloride
C) hydrogen chloride
D) copper (II) sulphate’
E) Graphite
A covalent compound which behaves like an ionic compound in aqueous solution.
Match each substance A to E listed below with the appropriate description:
A) Sulphur
B) Silver chloride
C) Hydrogen chloride
D) Copper (II) sulphate
E) Graphite
A pink metal which is deposited at the cathode during the electrolysis of the solution of this salt.
Name the gas evolved in each (formula is not acceptable)
The gas that burns in oxygen with a green flame.
Fill in the blanck with correct words from the brackets:
The general formula for alkane is (iii)………..CnH2n/CnH2n-2/CnH2n+2). For alkynes the general formula is (iv) ……………(CnH2n/CnH2n-2/CnH2n+2)
Solution A is a strong acid
Solution B is a weak acid
Solution C is strong alkali
Which solution contains solute molecules in addition to water molecules?
