Interested to Buy Any Domain ? << Click Here >> for more details...
The formula for rust is:
(A) FeO
(B) Fe2O3
(C) Fe3O4
(D) Fe2O3 xH2O
- 6 Answers
- 19372 Views
- ABC, I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / pisgahchemist
Actually, rust can take several forms. Under water, rust is
Fe(OH)3, and dehydrated rust is Fe2O3. But the rust that
most of us see is FeO(OH), which unfortunately is not listed
among the "answers". Too bad the item writer isn't aware of
this. The best answer among those which are given is (D),
the hydrated iron(III) oxide.
| Is This Answer Correct ? | 14 Yes | 3 No |
Answer / joshua tamm
the answer is all of them
its to do with oxidation states, of fe2+ and fe3+
and as for the last one, that is another way of saying the
rust is hydrated (i.e water is traped in the bonds of the
rust)
| Is This Answer Correct ? | 12 Yes | 13 No |
Who was the last Governor General of India? (A) Lord Mountbatten (B) C. Rajagopalachari (C) Lord Wavel (D) Surendra Nath Banerjee
. Which one of the following strongly threatens biodiversity? (a) Fragile ecosystems such as mangroves and wetlands (b) Inaccessible habitats in the Himalayas (c) Destruction of natural habitats and vegetation and shifting cultivation (d) Creation of biosphere reserves
1 Answers RRB, Western Railway,
Which major industrial group has entered into an agreement with the Punjab government for a major crop diversification programme? 1 Mahindra & Mahindra 2 Tata 3 Cargill Foods 4 Kellogs
Which of the following elements is not-radioactive? 1 Uranium 2 Thorium 3 Plutonium 4 zirconium
When was the Madras state renamed Tamilnadu ? a) 1969 b) 1970 c) 1968 d) 1971
The ad line ?Experience Yourself? is conneceted with the tourism of which state? 1 Kerala 2 Karnataka 3 Andhra Pradesh 4 Tamila Nadu
Harkishan Singh Surjeet is from which of the following political parties? (a) CPI (b) CPI (M) (c) NDA (d) Janata Dal
The African leader who held the heavy-weight boxing title in his own country for nine years and later rose to become the President of his country is: (a) Robert Mugabe (b) Idi Amin (c) Kenneth Kaunda (d) Nelson Mandela
By which of the following factors do we measure the economic growth of India? (a) Changes in the growth of population (b) Changes in the growth of national product (c) Changes in the growth of consumption (d) None of these
Which one is not the legal immunities of the President of India? (a) Not answerable to any court of law for the exercise of his powers (b) Cannot be compelled to appear as a witness before any court of law (c) No criminal proceedings can be brought against him during the term of his office (d) His powers are not limited even by Constitutional law
In which State is Ghana Bird Sanctury located? (A) U.P. (B) M.P. (C) Assam (D) Rajasthan
The phenomenon of radio-activity is related to : (1) Amateur Radio (2) Radio Astronomy (3) Nucleus of an element (4) Radiation
UPSC 
