Capital expenditure refers to funds used by a company to acquire, upgrade, and maintain physical assets such as property, buildings, or equipment. Unlike revenue expenditures, which are for day-to-day operations, capital expenditures are intended to provide long-term benefits to the business by increasing its productive capacity or extending the useful life of an existing asset. These are capitalized on the balance sheet rather than expensed immediately.

Leasehold property premium is capital expenditure (a-4). Insurance premiums are revenue expenses (b-1). Sale of securities is a capital receipt (c-2). Huge sales promotion expenses are deferred revenue expenditures (d-3). Therefore, the correct sequence is a-4, b-1, c-2, d-3.

Acquiring a copyright provides the publisher with a long-term intangible asset that will generate economic benefits over several years. Since the expenditure is for the acquisition of an asset rather than for day-to-day operations, it is classified as capital expenditure and is typically amortized over the useful life of the copyright.

Wages paid for the installation of a new machine are considered part of the cost of acquiring the asset and should be capitalized by debiting the Machinery Account, not the Wages Account. Treating installation costs as revenue expenditure (wages) violates the matching principle and misstates both the asset value and the operating expenses of the business.

Deferred revenue expenditure refers to heavy revenue expenditure that provides benefits over a period longer than one accounting year. Since the advertising campaign for a new product is expected to generate sales and brand awareness over several future periods, the cost is spread out (amortized) over those years rather than being charged entirely to the current year's profit and loss account.

Revenue expenditure is charged directly to the Profit and Loss account, impacting current profitability immediately. Capital expenditure, however, is capitalized and only affects profitability indirectly over time through depreciation charges or the impact on operational efficiency. While the source answer suggests this distinction, note that both ultimately influence long-term financial performance, though through different accounting mechanisms and timeframes.

Revenue expenditures are recurring costs incurred to maintain the normal operations of an asset or business. Painting an old building is a maintenance expense intended to preserve the asset's condition, whereas the other options represent capital expenditures that increase the value or capacity of fixed assets.

The initial cost of acquiring or developing a patent is considered a capital expenditure. However, subsequent annual renewal fees paid to maintain the legal validity of the patent are treated as revenue expenditures. These fees are recurring costs necessary to keep the asset in working condition for the business and are charged to the profit and loss account for the period in which they are incurred.

Embezzlement by an employee is considered an abnormal loss arising from the normal course of business operations. Since it is not an expenditure incurred to generate revenue or acquire assets, it is classified as a revenue loss and is charged directly to the Profit and Loss account.

Capital expenditure refers to funds used by a company to acquire, upgrade, and maintain physical assets such as property, buildings, or equipment. When an expenditure is made to improve efficiency or reduce operating costs over a long period, it is classified as capital expenditure because it provides long-term economic benefits rather than just maintaining current operations.