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?
Solution B
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).
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)
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 pink metal which is deposited at the cathode during the electrolysis of the solution of this salt.
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 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:
A) Sulphur
B) Silver chloride
C) Hydrogen chloride
D) Copper (II) sulphate
E) Graphite
A non-metal which is good conductor of electricity.
Name the gas evolved in each (formula is not acceptable)
The gas that burns in oxygen with a green flame.
Name the gas evolved in each case (formula is not acceptable)
The gas produced by the action of dilute nitric acid on copper.
