Showing posts from June, 2022
Class 12 | Biology | chapter 5 | Principles of Inheritance & Variation
In down’s syndrome of a male child, the sex complement is (a) XO (b) 45 XY (c) 45 XX (d) XXY
Class 12 | Biology | chapter 14| Organisms and Populations
The logistic population growth is expressed by the equation :
Class 12 | Biology | chapter 9 | Strategies For Enhancement in Food Production
Match the crops given in column-I with their resistance to disease given in column-II and choose the correct option. Column-1(Crop) ; Column-II (Resistance to diseases) A. Wheat I. Tobacco mosaic virus and leaf curl B. Brassica II. Bacterial blight C. Cowpea III. Leaf and stripe rust D. Cauliflower IV. White rust E. Chilli V. Black rot and curl blight black rot
Class 11 | Biology | Chapter 13 | Photosynthesis in higher plants
Which of the following bacteria is/are photosynthetic autotrophs? (a) Purple sulphur bacteria (b) Green sulphur bacteria (c) Cyanobacteria (d) All of the above
Class 12 | Chemistry | Chapter 8 | The D-and F-Block Elements
In which of the following cases, the stability of two oxidation states is correctly represented (a) Ti3+ > Ti4+ (b) Mn2+ > Mn3+ (c) Fe2+ > Fe3+ (d) Cu+ > Cu2+
Class 12 | Chemistry | Chapter 16|
Chemistry in Everyday Life
Structurally biodegradable detergents, should contain (a) normal alkyl chain (b) branched alkyl chain (c) phenyl side chain (d) cyclohexyl side chain
![Complexes formed in the following methods are I. Mond's process for purification of nickel. II. Removal of lead poisoning from the bodyIII. Cyanide process for extraction of silver. IV. Froth flotation process for separation of ZnS from galena ore by using depressant. I II III IV (a) Ni(CO)4 [Pb(EDTA]2– [Ag(CN)2 ] – [Zn(CN)2 ] (b) Ni(CO)4 [Pb(EDTA]2– [Ag(CN)2 ] – [Zn(CN)4 ] 2– (c) Ni(CO)6 [Pb(EDTA)]4– [Ag(CN)2 ] – [Zn(CN)6 ] 4– (d) Ni(CO)4 [Pb(EDTA)]2– [Ag(CN)4 ] 3– Zn(CN)4 ] 2](https://blogger.googleusercontent.com/img/a/AVvXsEj6RV0WPGCMjjfbQT581KTpVX1dLRgOK2iqS-fTXW_KuN4xTwMXN3Siq1mDosY6oulWZpRmYWRNWKjnisW4R1hNFM_Y5lH7KyUbw1uV0_EfDklNXJe5KVXzuKV_JVDCwwzaHIzfRMS7GvqNvmT0vJI_hWeFhMZ6bj4uEkkn_R3md-HGGCUe7vOZDRgLQg=w74-h74-p-k-no-nu)
Class 12 | Chemistry | Chapter 6 | General Principles and Processes of Isolation of Elements
Complexes formed in the following methods are I. Mond's process for purification of nickel. II. Removal of lead poisoning from the bodyIII. Cyanide process for extraction of silver. IV. Froth flotation process for separation of ZnS from galena ore by using depressant. I II III IV (a) Ni(CO)4 [Pb(EDTA]2– [Ag(CN)2 ] – [Zn(CN)2 ] (b) Ni(CO)4 [Pb(EDTA]2– [Ag(CN)2 ] – [Zn(CN)4 ] 2– (c) Ni(CO)6 [Pb(EDTA)]4– [Ag(CN)2 ] – [Zn(CN)6 ] 4– (d) Ni(CO)4 [Pb(EDTA)]2– [Ag(CN)4 ] 3– Zn(CN)4 ] 2
Class 11 | Chemistry | Chapter 04 | Chemical Bonding And Molecular Structure
The enolic form of a acetone contains (a) 9 sigma bonds, 1 pi bond and 2 lone pairs (b) 8 sigma bonds, 2 pi bonds and 2 lone pairs (c) 10 sigma bonds, 1 pi bond and 1 lone pair (d) 9 sigma bonds, 2 pi bonds and 1 lone pair
Class 12 | Biology | chapter 8 | Human Health And Disease
Man, in the life cycle of Plasmodium, is (a) primary host (b) secondary host (c) intermediate host (d) None of these
Class 11 | Biology | chapter 7 | Structural Organisation In Animals
The kind of epithelium which forms the inner walls of blood vessels is (a) cuboidal epithelium (b) columnar epithelium (c) ciliated columnar epithelium (d) squamous epithelium
Class 12 | Chemistry | Chapter 11 | Alcohols Phenols and Ethers
What is Z in the following sequence of reactions? (fig.) (a) CH3CH2CH2OH (b) CH3CH(OH)CH3 (c) (CH3CH2 ) 2CHOH (d) CH3CH = CH2
AMU B.Sc. (Hons) Extrance English
Error-correction of words and sentences AMU B.Sc. (Hons) Extrance English
CLASS 11 | Physics |CHAPTER 3 | Motion In A Straight Line*
A particle starting with certain initial velocity and uniform acceleration covers a distance of 12 m in first 3 seconds and a distance of 30 m in next 3 seconds. The initial velocity of the particle is (a) 3 ms–1 (b) 2.5 ms–1 (c) 2 ms–1 (d) 1 ms–1
Class 11 | Biology | chapter 4 | Animal Kingdom
Classification of Porifera is based on (a) branching (b) spicules (c) reproduction (d) symmetry
Class 12 | Biology | chapter 7 | Evolution
Which of the following primate is the closest relative of humans? (a) Rhesus monkey (b) Orangutan (c) Gorilla (d) Gibbon
Class 12 | Biology | chapter 9 | Strategies For Enhancement in Food Production
Q1: Which one of the following is a freshwater fish? (a) Catla (b) Rohu (c) Common carp (d) All of these. Q2:Which one of the following is/are marine fish? (a) Rohu (b) Hilsa (c) Mackerel (d) Both (b) and (c)
Class 12 | Biology | chapter 2 | Sexual Reproduction in Flowering Plants
Female gametophyte of angiosperms is represented by (a) Ovule (b) Megaspore mother cell (c) Embryo sac (d) Nucellus
Class 11 | Biology | Chapter 19 | Excretory Products and Their Elimination
Which of the following sets of animals produce the same substances as their chief excretory product? (a) Fish, pigeon and frog (b) Camel, housefly and snake (c) Frog, monkey and dog (d) Amoeba, ant and antelope
Class 12 | Biology | chapter 8 | Human Health And Disease
Vaccine against polio viruses is an example of (a) auto-immunization (b) passive immunization (c) active immunization (d) simple immunization
Class 11 | Biology | Chapter 21 | Neural Control and Coordination
In the chemistry of vision in mammals, the photosensitive substance is called (a) sclerotin (b) retinol (c) rhodopsin (d) melanin
Class 11 | Biology | Chapter 13 | Photosynthesis in higher plants
Chemiosmotic hypothesis given by Peter Mitchell proposes the mechanism of (a) synthesis of ATP (b) synthesis of FADH2 (c) synthesis of NADH (d) synthesis of NADPH
Class 12 | Biology | chapter 10 | Microbes in Human Welfare
Monascus purpureus is a yeast used commercially in the production of : (a) ethanol (b) streptokinase for removing clots from the blood vessels. (c) Citric acid (d) blood cholesterol lowering statins
Class 11 | Biology | chapter 8 | Cell: The Unit Of Life
Centrioles and centrosomes occur in the cells of (a) green plants (b) animals (c) bacteria and cyanobacteria (d) both (b) and (c)
Class 11 | Biology | chapter 11 | Transport in Plants
Which of the following pairs of the cell structures are important for determining the movement of molecules in or out of the plant cell? (a) Tonoplast + Vacuolar membrane (b) Tonoplast + Cell membrane (c) Cell wall + Cell membrane (d) Cell wall + Tonoplasts
Class 11 | Biology | Chapter 15 | Plant Growth and Development
Parthenocarpic tomato fruits can be produced by (a) treating the plants with low concentrations of gibberellic acid and auxins (b) raising the plants from vernalized seeds (c) treating the plants with phenylmercuric acetate (d) removing androecium of flowers before pollen grains are released
![A point object is placed at a distance of 60 cm from a convex lens of focal length 30 cm. If a plane mirror were put perpendicular to the principal axis of the lens and at a distance of 40 cm from it, the final image would be formed at a distance of: [ NEET 2021 ]](https://blogger.googleusercontent.com/img/a/AVvXsEhaQvM4p64pqXFf12JHr_e8Q9ymnf8dMIjoy7Fin_8s-o4zfZPlk1FVEFuhiDYw3UFyDc40VHvENpBJY2lmAORoAVI5ataHnwM4ZM-LIhSLeXA1jie9kp-dgqAY4Xdau5haRpjPFm_FNdkOO-Lhrif4GXJg1IWinfBSv06nxBfHke2wWc9OEZa18dE4bg=w74-h74-p-k-no-nu)
![Which one of the following polymers is prepared by addition polymerisation ? (1) Teflon (2) Nylon-6 6 (3) Novolac (4) Dacron [ NEET 2021 ]](https://blogger.googleusercontent.com/img/a/AVvXsEiZ7kOCFUeiJwPU-wlI08AWoKRdtFRmpanIn3e0-lpZBxrWiEYx9rcppAw0wHc0O66gW_iwV_2hx0ra9iAPwca0Aw-4U9Y5ApyLoOFRvvTDtXVJHsMfd-cic02o8WFK2JP2u2BbwWqYa3xVG1JAymWEG3MiQO-xY87s8--xsYNwBQGAqVSBGW49MLQIlw=w74-h74-p-k-no-nu)
![Consider the following statements (A) and (B) and identify the correct answer. A. A zener diode is connected in reverse bias when used as a voltage regulator. B. The potential barrier of p-n junction lies between 0.2 V to 0.3 V. 1. (A) is correct and (B) is incorrect. 2. (A) is incorrect and (B) is correct. 3. (A) and (B) both are correct. 4. (A) and (B) both are incorrect .[NEET 2021 ]](https://blogger.googleusercontent.com/img/a/AVvXsEi2ci2g8GGiC2F9ADgErS1qxaBZbbezXlNucT-WzRKbT44fJg2PSpAS5iqVvkdB1Sr032LZVDh_Tqk6k2HQrQTRqVsDw1HU1cRhaaMcUGLRXMQfJw7xRUGoSW6pDKd-ntRJoQTXW5vjyp26x4P4CKfRnn_DnjAmqQRFJK-geO3SYa1BOt7vsHKGQfY1KA=w74-h74-p-k-no-nu)
Class 11 | Biology | Chapter 9 | Biomolecules
Which of the following is a structural polysaccharide? (1) Glycogen (2) Starch (3) Inulin (4) Cellulose
![Which of the following stages of meiosis involves division of centromere ? (1) Metaphase I (2) Metaphase II (3) Anaphase II (4) Telophase II [ NEET 2021 ]](https://blogger.googleusercontent.com/img/a/AVvXsEjQ3aGblyJ_YcOfdxTVS04jsEqMlMMZ5b3fOi58JvssDesvWcEKIQnb1IndN4_III84n1831bRKe9TlOpzAgvqOdE4QSZdvF5VuMav2bepRwPw1Xn58whuJDWjpR8rDKADucWtmXGK2kIsc15UiB_ddsMONlJZCb3FWgReqcpcLyTK_T5QIs0DPPSxyNA=w74-h74-p-k-no-nu)
![The term used for transfer of pollen grains from anthers of one plant to stigma of a different plant which, during pollination, brings genetically different types of pollen grains to stigma, is : (1) Xenogamy (2) Geitonogamy (3) Chasmogamy (4) Cleistogamy [ NEET 2021 ]](https://blogger.googleusercontent.com/img/a/AVvXsEjmK4ki6kcx8kxY9L_Ztwg0riqig0Y3c73VZy1sROjkypI72C2uCxLyyfRvBXxFXZkMhZdrJ3e-LteV5eLRxCnZVTeFbSjjD11griKbrLVpeuC_NmaQKw6n4ab1534_5LPK-cBi7Or22f5aMIQlLz31uyOM0NfDasXnRHytleAMaaVHvjZ5zxOA9PoOlg=w74-h74-p-k-no-nu)
![During the purification process for recombinant DNA technology, addition of chilled ethanol precipitates out: (1) RNA (2) DNA (3) Histones (4) Polysaccharides [NEET 2021]](https://blogger.googleusercontent.com/img/a/AVvXsEiUYtv_y2xPUP53GLq0VpYFM4NA2eJWEr-a_XOTkH3064uNvC1nyJ5KMLV0zloDDbjzv2Bnob_Encj0NUKb8do1rcXQ8hnMcpzXxPZidL6mh8pmx_fOJ81lNA5oWARg39HF1fSYxbz_--vASKH90Rzr99-zH5JwrKIDwW3Faxpei8IFDotRbdGK0nnJoA=w74-h74-p-k-no-nu)
![Which one among the following is the correct option for right relationship between CP and CV for one mole of ideal gas ? [ NEET 2021 ]](https://blogger.googleusercontent.com/img/a/AVvXsEhTNAli6ueIm6AkxxSUhNTemOlZxsClNxhr30ZvN4S2nt7Z32s8OWNvXBxYcuFoGZW6Ccw8d5qZ8M1JA4-jwpi3dttAMg6M59m0_xAved-byek_Z963o9gT_xwyjZ_gaF3pLsmBstYxqgS0Ajz4hK-WKv5QkQQGzJoPiyFPfSufC5axAnOkrW5UFnCrmA=w74-h74-p-k-no-nu)
![Which of the following is not a step in Multiple Ovulation Embryo Transfer Technology (MOET)? (1) Cow is administered hormone having LH like activity for super ovulation (2) Cow yields about 6-8 eggs at a time (3) Cow is fertilized by artificial insemination (4) Fertilized eggs are transferred to surrogate mothers at 8-32 cell stage [ NEET 2021 ]](https://blogger.googleusercontent.com/img/a/AVvXsEhPGSuCLdmgNxEIABa7pVPuls5QaplRC0OIEv5hrVYnB7Y_HZJf2m33WbimLvUYO7Zk3tE-tbEl9agqYQBS-WJftS4CrmMdDGp7-K2_rRugJfX5jIY7WJ10soGstsw2ifK99FzKB2B1jeYYucq0YUZD6_CoghUkrKoIxXHNSHh8QuqnshfRwIzBD8zCjA=w74-h74-p-k-no-nu)
