Consider the reaction : H 2 SO 3 aq + Sn aq 4 + + H 2 O l ⁡ → Sn aq 2 + + HSO 4 aq - + 3 H aq + Which of the following statements is correct ?

H 2 SO 3 is the reducing agent because it undergoes oxidation

Sn 4 + is the oxidizing agent because it undergoes oxidation

Sn 4 + is the reducing agent because it undergoes oxidation

H 2 SO 3 is the reducing agent because it undergoes reduction

EASY

Earn 100

Which of the following matching is correct?
Subatomic particle       Scientist

1. Electron (i) Crooks, Thomson

2. Proton     (ii) Goldstein

3. Neutron    (iii) Chadwick

50% studentsanswered this correctly

Important Questions on Chemistry

EASY

Reasoning and General Awareness>General Knowledge and Current Affairs>Chemistry>Atomic Structure

Electrons behave like gas in J.J. Thompson experiment because they

EASY

Reasoning and General Awareness>General Knowledge and Current Affairs>Chemistry>Atomic Structure

The orbital nearest to the nucleus is

EASY

Reasoning and General Awareness>General Knowledge and Current Affairs>Chemistry>Atomic Structure

In the cyanide extraction process of silver from argentite ore, the oxidizing and reducing agents used are respectively:

MEDIUM

Reasoning and General Awareness>General Knowledge and Current Affairs>Chemistry>Atomic Structure

Which one of the following processes involves a chemical reaction?

EASY

Reasoning and General Awareness>General Knowledge and Current Affairs>Chemistry>Atomic Structure

Consider the reaction :

H_{2} {SO}_{3 (aq)} + {Sn}_{(aq)}^{4 +} + H_{2} O_{(l)} \to {Sn}_{(aq)}^{2 +} + {HSO}_{4 (aq)}^{-} + 3 H_{(aq)}^{+}

Which of the following statements is correct ?

EASY

Reasoning and General Awareness>General Knowledge and Current Affairs>Chemistry>Atomic Structure

Rutherford's experiments on scattering of

α

-particles proved that:

EASY

Reasoning and General Awareness>General Knowledge and Current Affairs>Chemistry>Atomic Structure

Which of the following equation depicts the oxidizing nature of

H_{2} O_{2}

EASY

Reasoning and General Awareness>General Knowledge and Current Affairs>Chemistry>Atomic Structure

How many oxygen atoms are present in a molecule of potassium permanganate?

MEDIUM

Reasoning and General Awareness>General Knowledge and Current Affairs>Chemistry>Atomic Structure

4 d, 5 p, 5 f

and

6 p

orbitals are arranged in the order of decreasing energy. The correct option is:

EASY

Reasoning and General Awareness>General Knowledge and Current Affairs>Chemistry>Atomic Structure

A beam of fast moving alpha particles were directed towards a thin film of Gold. The parts $A^{'}, B^{'}$ and $C^{'}$ of the transmitted and reflected beams corresponding to the incident parts $A, B$ and $C$ of the beam are shown in the adjoing diagram. The number of alpha particles in