Which of the following statements about the reaction given below are correct? MnO2 + 4HCI → MnCl2 +2H20 + Cl2 (i) HCl is oxidized to Cl2 (ii) MnO2 is reduced to MnCl2 (iii) MnCl2 acts as an oxidizing agent (iv) HCl acts as an oxidizing agent (a) (i), (iii) and (iv) (b) (i), (ii) and (iii) (c) (i) and (ii) only (d) (iii) and (iv) only

Which of the following statements about the reaction given below are correct?
MnO2 + 4HCI → MnCl2 +2H20 + Cl2
(i) HCl is oxidized to Cl2
(ii) MnO2 is reduced to MnCl2
(iii) MnCl2 acts as an oxidizing agent
(iv) HCl acts as an oxidizing agent
(a) (i), (iii) and (iv)
(b) (i), (ii) and (iii)
(c) (i) and (ii) only
(d) (iii) and (iv) only
by

1 Answer

Answer :

Answer: . (c)
by

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Description : Match column -I with column - II. Column-I Column-II A. Saprophyte (i) Symbiotic association of fungi with plant roots B. Parasite (ii) Decomposition of dead organic materials C. Lichens (iii) Living on living plants or animals D. ... (iii) (iv) (c) (iii) (ii) (i) (iv) (d) (ii) (i) (iii) (iv)

Last Answer : (a) (ii) (iii) (iv) (i)

Match the organisms in column-I with habitats in column-II. Column-I Column-II A. Halophiles (i) Hot springs B. Thermoacidophiles (ii) Aquatic environment C. Methanogens (iii)Guts of ruminants D. Cyanobacteria (iv) Salty area Select the correct answer from the options given below. (a) A-(iv), B-(i), C-(iii), D-(ii) (b) A-(i), B-(ii), C-(iii), D-(iv) (c) A-(iii), B-(iv), C-(ii), D-(i) (d) A-(ii), B-(iv), C-(iii), D-(i)

Description : Match the organisms in column-I with habitats in column-II. Column-I Column-II A. Halophiles (i) Hot springs B. Thermoacidophiles (ii) Aquatic environment C. Methanogens (iii)Guts of ruminants D. Cyanobacteria (iv) Salty area Select the correct ... , C-(ii), D-(i) (d) A-(ii), B-(iv), C-(iii), D-(i)

Last Answer : (a) A-(iv), B-(i), C-(iii), D-(ii)

Match column I with column II for housefly classification and select the correct option using the codes given below. Column I Column II A. Family (i) Diptera B. Order (ii) Arthropoda C. Class (iii)Muscidae D. Phylum (iv) Insecta (a) A-(iii), B-(i), C-(iv), D-(ii) (b) A-(iii), B-(ii), C-(iv), D-(i) (c) A-(iv), B-(iii), C-(ii), D-(i) (d) A-(iv), B-(ii), C-(i), D-(iii)

Description : Match column I with column II for housefly classification and select the correct option using the codes given below. Column I Column II A. Family (i) Diptera B. Order (ii) Arthropoda C. Class (iii)Muscidae D. Phylum (iv) Insecta (a) A-( ... B-(iii), C-(ii), D-(i) (d) A-(iv), B-(ii), C-(i), D-(iii)

Last Answer : (d) A-(iv), B-(ii), C-(i), D-(iii)

Match List-I (Type of Unemployment) with List-II (Characteristics) and select the correct answer using the codes given below: L ist-I L ist -I I (Type of (Char acter ist ics) Unem ployment ) A. Seasonal I. Occurs during boom or recession in the economy B. Frictional II. An absence of demand for a certain type of workers C. Disguised III. Occurs when moving from one job to another D. Structural IV. Actual contribution by the additional labour is nil E. Cyclical V. Job opportunities during certain months in the year

Description : Match List-I (Type of Unemployment) with List-II (Characteristics) and select the correct answer using the codes given below: L ist-I L ist -I I (Type of (Char acter ist ics) Unem ... contribution by the additional labour is nil E. Cyclical V. Job opportunities during certain months in the year

Last Answer : (1) A-V, B-III, C-IV, D-II, E-I

Match List I (Vegetation zones) with List II (Mean Annual Temperature Range) and select the correct anwer using the code given below: L i st I L i st I I (Vegetati on (M ean Annual Zones) Temper atur e Range) A. Alpine I. Above 24C B. Temperate II. 17 to 24C C. Tropical III. Below 7C D. Sub-tropical IV. 7C to 17C

Description : Match List I (Vegetation zones) with List II (Mean Annual Temperature Range) and select the correct anwer using the code given below: L i st I L i st I I (Vegetati on (M ean Annual Zones) Temper atur e ... 24C B. Temperate II. 17 to 24C C. Tropical III. Below 7C D. Sub-tropical IV. 7C to 17C

Last Answer : IV. 7C to 17C

Match List I (Industries) with List II (Important Centers) and select the correct answer using the code given below : L i st I L i st I I (I n dust r i es) (I m por t an t Cent er s) A. Cotton textile I. Ludhiana B. Hosiery II. Rishra C. Jute III. Coimbatore D. Silk textile IV. Mysuru (1) A-I, B-III, C-IV, D-II (2) A-IV, B-I, C-II, D-III (3) A-III, B-II, C-I, D-IV (4) A-III, B-I, C-II, D-IV

Description : Match List I (Industries) with List II (Important Centers) and select the correct answer using the code given below : L i st I L i st I I (I n dust r i es) (I m por t an t Cent er s) A. Cotton textile I. Ludhiana B. Hosiery II. ... I, C-II, D-III (3) A-III, B-II, C-I, D-IV (4) A-III, B-I, C-II, D-IV

Last Answer : (4) A-III, B-I, C-II, D-IV

Slash and Burn Agriculture' is known by specific name in different states of India. Match the shaded states marked in the given map with codes given in the table (Different names of Slash and Burn Agriculture) and select the correct answer using the code given below. B D A C Table (Di ffer ent Names of Slash and Bur n Agr i cult ur e) I. Bringa II. Waltre III. Dahiya IV. Kuruwa (1) A-III, B-IV, C-II, D-I (2) A-III, B-II, C-IV, D-I (3) A-I, B-IV, C-II, D-III (4) A-I, B-II, C-IV, D-III

Description : Slash and Burn Agriculture' is known by specific name in different states of India. Match the shaded states marked in the given map with codes given in the table (Different names of Slash and Burn Agriculture) and select the correct answer ... ) A-I, B-IV, C-II, D-III (4) A-I, B-II, C-IV, D-III

Last Answer : (4) A-I, B-II, C-IV, D-III